Koch

Dr.-Ing. Rainer Koch

  • Institut für Thermische Strömungsmaschinen
    KIT, Campus Süd
    Geb. 30.60
    Straße am Forum 6
    D-76131 Karlsruhe

Veröffentlichungen und Tagungsbeiträge


2021
Presentations
Effect of Droplet Starting Conditions on the Spray Dispersion Resulting From a Swirl Cup Injector
Bürkle, N.; Holz, S.; Bärow, E.; Koch, R.; Bauer, H.-J.
2021, June 11. ASME Turbo Expo: Turbomachinery Technical Conference and Exposition (GT 2021), Online, June 7–11, 2021
Numerical Investigation of the Low-Swirl Flow in an Aeronautical Combustor With Angular Air Supply
Hoffmann, S.; Koch, R.; Bauer, H.-J.
2021, June 11. ASME Turbo Expo: Turbomachinery Technical Conference and Exposition (GT 2021), Online, June 7–11, 2021
Conference Papers
Effect of Droplet Starting Conditions on the Spray Dispersion Resulting From a Swirl Cup Injector
Bürkle, N.; Holz, S.; Bärow, E.; Koch, R.; Bauer, H.-J.
2021. ASME Turbo Expo 2021: Turbomachinery Technical Conference and Exposition ; Volume 2C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, The American Society of Mechanical Engineers (ASME). doi:10.1115/GT2021-58338
Numerical Investigation of the Low-Swirl Flow in an Aeronautical Combustor With Angular Air Supply
Hoffmann, S.; Koch, R.; Bauer, H.-J.
2021. Proceedings of ASME Turbo Expo 2021: Turbomachinery Technical Conference and Exposition, June 7–11, 2021, Virtual, Online. Volume 2C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, Nr. GT2021–59286, The American Society of Mechanical Engineers (ASME). doi:10.1115/GT2021-59286
Investigation of Adjacent Lifted Flames Interaction in an Inline and Inclined Multi-Burner Arrangement
Shamma, M.; Harth, S. R.; Zarzalis, N.; Trimis, D.; Hoffmann, S.; Koch, R.; Bauer, H.-J.; Langone, L.; Galeotti, S.; Andreini, A.
2021. Proceedings of ASME Turbo Expo 2021: Turbomachinery Technical Conference and Exposition Volume 3B : ASME Turbo Expo 2021 Turbomachinery Technical Conference and Exposition GT2021June 7-11, 2021, Virtual, Online, Art.-Nr. V03BT04A020, The American Society of Mechanical Engineers (ASME). doi:10.1115/GT2021-59941
Analysis of the Backflow Recirculation in Flow Blurring Nozzles via Lagrangian Coherent Structures
Ates, C.; Giovannoni, V.; Bürkle, N.; Keller, M.; Okraschevski, M.; Koch, R.; Bauer, H.-J.
2021. ICLASS 2021, 15th, Triennial International Conference on Liquid Atomization and Spray Systems, Edinburgh, UK, 30 Aug. - 2 Sept. 2021
Journal Articles
Fluid dynamics beyond the continuum: A physical perspective on large-eddy simulation
Okraschevski, M.; Hoffmann, S.; Stichling, K.; Koch, R.; Bauer, H.-J.
2021. Physical review fluids, 6 (10), Article: L102601. doi:10.1103/PhysRevFluids.6.L102601
Euler–Lagrangian simulation of the fuel spray of a planar prefilming airblast atomizer
Hoffmann, S.; Holz, S.; Koch, R.; Bauer, H.-J.
2021. CEAS Aeronautical Journal, 12 (2), 245–259. doi:10.1007/s13272-021-00493-y
Implicit molecular stresses in weakly compressible particle-based discretization methods for fluid flow
Okraschevski, M.; Buerkle, N.; Koch, R.; Bauer, H.-J.
2021. Physical review / E, 103 (3), 033304. doi:10.1103/PhysRevE.103.033304
Insights into the evaporation characteristics of saliva droplets and aerosols: Levitation experiments and numerical modeling
Lieber, C.; Melekidis, S.; Koch, R.; Bauer, H.-J.
2021. Journal of aerosol science, 154, Art.-Nr. 105760. doi:10.1016/j.jaerosci.2021.105760
Morphological characterization of urea derived deposits in SCR systems
Ates, C.; Börnhorst, M.; Koch, R.; Eck, M.; Deutschmann, O.; Bauer, H.-J.
2021. The chemical engineering journal, 409, 128230. doi:10.1016/j.cej.2020.128230
2020
Journal Articles
Smoothed particle hydrodynamics simulation of high velocity impact dynamics of molten sand particles
Chaussonnet, G.; Bravo, L.; Flatau, A.; Koch, R.; Bauer, H.-J.
2020. Energies, 13 (19), Art.-Nr.: 5134. doi:10.3390/en13195134
Modeling the Formation of Urea-Water Sprays from an Air-Assisted Nozzle
Frühhaber, J.; Lieber, C.; Mattes, D.; Lauer, T.; Koch, R.; Bauer, H.-J.
2020. Applied Sciences, 10 (16), Article no: 5723. doi:10.3390/app10165723
Spray evaporation of urea–water solution: Experiments and modelling
Lieber, C.; Koch, R.; Bauer, H.-J.
2020. Experimental thermal and fluid science, 116, Article: 110108. doi:10.1016/j.expthermflusci.2020.110108
Air-Assisted Atomization at Constant Mass and Momentum Flow Rate: Investigation into the Ambient Pressure Influence With the Smoothed Particle Hydrodynamics Method
Chaussonnet, G.; Joshi, S.; Wachter, S.; Koch, R.; Jakobs, T.; Kolb, T.; Bauer, H.-J.
2020. Journal of engineering for gas turbines and power, 142 (3), Art.Nr. 031019. doi:10.1115/1.4044968
2019
Posters
A Holistic View on Urea Injection for NOxEmission Control: Impingement, Reatomization and Deposit Formation
Börnhorst, M.; Dörnhöfer, J.; Ates, C.; Samkhaniani, N.; Pfeil, J.; Wörner, M.; Koch, R.; Bauer, H.-J.; Deutschmann, O.; Frohnapfel, B.; Koch, T.
2019, September. 6th International Symposium on Modeling of Exhaust-Gas After-Treatment (MODEGAT VI 2019), Bad Herrenalb, Germany, September 8–10, 2019
Analysis of an acoustic levitator flow field using Particle Shadow Velocimetry
Lebanoff, A.; Schönewolf, K.; Autenrieth, S.; Lieber, C.; Koch, R.; Bauer, H.-J.
2019. 72nd Annual Meeting of the APS Division of Fluid Dynamics (2019), Seattle, WA, USA, November 23–26, 2019
Presentations
Euler-Lagrange Simulationen des Kraftstoffsprays eines ebenen Filmlegers
Hoffmann, S.; Holz, S.; Koch, R.; Bauer, H.-J.
2019, October 1. Deutscher Luft- und Raumfahrtkongress (DLRK 2019), Darmstadt, Germany, September 30–October 2, 2019
Experimental validation of evaporating urea-water sprays at elevated temperature and pressure
Lieber, C.; Koch, R.; Bauer, H.-J.
2019. 6th International Symposium on Modeling of Exhaust-Gas After-Treatment (MODEGAT VI 2019), Bad Herrenalb, Germany, September 8–10, 2019
Experiments of evaporating urea-water sprays for the validation of SCR-systems
Lieber, C.; Koch, R.; Bauer, H.-J.
2019. 5th International FEV Conference Diesel Powertrains 3.0 (2019), Rouen, France, July 2–3, 2019
Influence of Spectral Particle Properties on Radiative Heat Transfer in Combusting Systems
Ates, C.; Koch, R.; Bauer, H.-J.
2019, May 6. 17th International Conference on Numerical Combustion (2019), Aachen, Germany, May 6–8, 2019
Reports/Preprints
Towards DeepSpray: Using Convolutional Neural Network to post-process Shadowgraphy Images of Liquid Atomization
Chaussonnet, G.; Lieber, C.; Yikang, Y.; Gu, W.; Bartschat, A.; Reischl, M.; Koch, R.; Mikut, R.; Bauer, H.-J.
2019. doi:10.5445/IR/1000097897/v3
Conference Papers
Progress in the Smoothed Particle Hydrodynamics method to simulate and post-process spray generation
Chaussonnet, G.; Dauch, T.; Keller, M.; Okraschevski, M.; Ates, C.; Schwitzke, C.; Koch, R.; Bauer, H.-J.
2019. 10th International Conference on Multiphase Flow, Rio de Janeiro, BR, May 19-24, 2019
Air-Assisted Atomization at Constant Mass and Momentum Flow Rate: Investigation of the Ambient Pressure Influence with the SPH Method
Chaussonnet, G.; Joshi, S.; Wachter, S.; Koch, R.; Jakobs, T.; Kolb, T.; Bauer, H.-J.
2019. Proceedings of the ASME Turbo Expo 2019: Turbomachinery Technical Conference and Exposition (GT2019), The American Society of Mechanical Engineers (ASME). doi:10.1115/GT2019-90372
Spray Evaporation of Urea-Water-Solution: Experiments and Modelling [in press]
Lieber, C.; Koch, R.; Bauer, H.-J.
2019. Proceedings of the 11th Mediterranean Combustion Symposium, Tenerife, Spain, 16 - 20 June 2019
Journal Articles
Close Nozzle Spray Characteristics of a Prefilming Airblast Atomizer
Holz, S.; Braun, S.; Chaussonnet, G.; Koch, R.; Bauer, H.-J.
2019. Energies, 12 (14), 2835. doi:10.3390/en12142835
Analyzing the Interaction of Vortex and Gas–Liquid Interface Dynamics in Fuel Spray Nozzles by Means of Lagrangian-Coherent Structures (2D)
Dauch, T. F.; Ates, C.; Rapp, T.; Keller, M. C.; Chaussonnet, G.; Kaden, J.; Okraschevski, M.; Koch, R.; Dachsbacher, C.; Bauer, H.-J.
2019. Energies, 12 (13), Article: 2552. doi:10.3390/en12132552
Smoothed Particle Hydrodynamics Simulation of Oil-jet Gear Interaction
Keller, M. C.; Braun, S.; Wieth, L.; Chaussonnet, G.; Dauch, T. F.; Koch, R.; Schwitzke, C.; Bauer, H.-J.
2019. Journal of tribology, 141 (7), Art.-Nr. 071703. doi:10.1115/1.4043640
Numerical prediction of air-assisted primary atomization using Smoothed Particle Hydrodynamics
Braun, S.; Wieth, L.; Holz, S.; Dauch, T. F.; Keller, M. C.; Chaussonnet, G.; Gepperth, S.; Koch, R.; Bauer, H.-J.
2019. International journal of multiphase flow, 114, 303–315. doi:10.1016/j.ijmultiphaseflow.2019.03.008
2018
Conference Papers
Development of a Second-Order Corrector for an Accurate Laplacian Operator in SPH
Wirth, M.; Chaussonnet, G.; Koch, R.; Bauer, H.-J.
2018. Deutscher Luft- und Raumfahrtkongress - Luft- und Raumfahrt – Digitalisierung und Vernetzung (DGLR), Friedrichshafen, Germany, 4. - 6. September 2018
New Insights in the Primary Breakup Process of Prefilming Airblast Atomizers by SPH Predictions
Holz, S.; Braun, S.; Chaussonnet, G.; Dauch, T.; Kaden, J.; Keller, M.; Schwitzke, C.; Koch, R.; Bauer, H.-J.
2018. ICLASS 2018: 14th International Conference on Liquid Atomization and Spray Systems, Chicago, Ill, July 22-26, 2018, ILASS-Americas
Investigation of the liquid accumulation characteristics in planar prefilming airblast atomization
Chaussonnet, G.; Laroche, T.; Lieber, C.; Holz, S.; Koch, R.; Bauer, H.-J.
2018. Proceedings of the 14th International Conference on Liquid Atomization & Spray Systems (ICLASS2018), Chicago, IL, July 22-26, 2018
Three-dimensional SPH simulation of a twin-fluid atomizer operating at high pressure [in press]
Chaussonnet, G.; Braun, S.; Dauch, T.; Keller, M.; Kaden, J.; Jakobs, T.; Schwitzke, C.; Koch, R.; Bauer, H.-J.
2018. Proceedings of the 14th International Conference on Liquid Atomization & Spray Systems (ICLASS2018), Chicago, IL, July 22-26, 2018
Journal Articles
Smoothed Particle Hydrodynamics Simulation of an Air-Assisted Atomizer Operating at High Pressure: Influence of Non-Newtonian Effects
Chaussonnet, G.; Koch, R.; Bauer, H.-J.; Sänger, A.; Jakobs, T.; Kolb, T.
2018. Journal of fluids engineering, 140 (6), Art. Nr.: 061301. doi:10.1115/1.4038753
2017
Presentations
Smoothed Particle Hydrodynamics Simulation of Oil-Jet Gear Interaction
Keller, M. C.; Braun, S.; Wieth, L.; Chaussonnet, G.; Dauch, T. F.; Koch, R.; Schwitzke, C.; Bauer, H.-J.
2017. ASME Turbo Expo: Turbomachinery Technical Conference and Exposition (GT 2017), Charlotte, NC, USA, June 26–30, 2017
Conference Papers
Short Helical Combustor: Flow Control in a Combustion System With Angular Air Supply
Ariatabar, B.; Koch, R.; Bauer, H.-J.
2017. ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition, Charlotte, North Carolina, USA, June 26–30, 2017. Vol.: 4A, V04AT04A001, The American Society of Mechanical Engineers (ASME). doi:10.1115/GT2017-63037
SPH Simulation of an Air-Assisted Atomizer Operating at High Pressure : Influence of Non-Newtonian Effects
Chaussonnet, G.; Koch, R.; Bauer, H.-J.; Sänger, A.; Jakobs, T.; Kolb, T.
2017. Proceedings of ASME Turbo Expo 2017 : Turbomachinery Technical Conference & Exposition, Volume 3 : Coal, Biomass and Alternative Fuels, Cycle Innovations; Electric Power, Industrial and Cogeneration Applications, Organic Rankine Cycle Power Systems, Charlotte, North Carolina, USA, 26th - 30th June 2017, Art.Nr. GT2017–63033, The American Society of Mechanical Engineers (ASME). doi:10.1115/GT2017-63033
Computational Prediction of Primary Breakup in Fuel Spray Nozzles for Aero-Engine Combustors
Dauch, T. F.; Braun, S.; Wieth, L.; Chaussonnet, G.; Keller, M. C.; Koch, R.; Bauer, H.-J.
2017. ILASS 2017 : 28th European Conference on Liquid Atomization and Spray Systems, Valencia, Spain, 6th - 8th September 2017, Editorial Universidad Politècnica de València (Editorial UPV). doi:10.4995/ILASS2017.2017.4693
Smoothed Particle Hydrodynamics Simulation of Oil-Jet Gear Interaction
Keller, M. C.; Braun, S.; Wieth, L.; Chaussonnet, G.; Dauch, T. F.; Koch, R.; Schwitzke, C.; Bauer, H.-J.
2017. Proceedings of ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition : Volume 2B - Turbomachinery, Charlotte, North Carolina, USA, 26th - 30th June 2017, Art.Nr. GT2017–63594, The American Society of Mechanical Engineers (ASME). doi:10.1115/GT2017-63594
Time-Response of Recent Prefilming Airblast Atomization Models in an Oscillating Air Flow Field
Chaussonnet, G.; Müller, A.; Holz, S.; Koch, R.; Bauer, H.-J.
2017. Proceedings of ASME Turbo Expo 2017 : Turbomachinery Technical Conference & Exposition, Volume 4 A : Combustion, Fuels and Emissions, Charlotte, North Carolina, USA, 26th - 30th June 2017, Art.Nr. GT2017–63041, The American Society of Mechanical Engineers (ASME). doi:10.1115/GT2017-63041
Preprocessing Workflow for the Initialization of SPH Predictions based on Arbitrary CAD Models
Dauch, T. F.; Okraschevski, M.; Keller, M. C.; Braun, S.; Wieth, L.; Chaussonnet, G.; Koch, R.; Bauer, H.-J.
2017. 12th International SPHERIC Workshop, Universidade de Vigo, Ourense, Spain, 13th - 15th June 2017
Journal Articles
Short Helical Combustor : Flow Control in a Combustion System With Angular Air Supply
Ariatabar, B.; Koch, R.; Bauer, H.-J.
2017. Journal of engineering for gas turbines and power, 140 (3), 031507/1–6. doi:10.1115/1.4037961
Smoothed Particle Hydrodynamics for Numerical Predictions of Primary Atomization
Braun, S.; Koch, R.; Bauer, H.-J.
2017. Innovatives Supercomputing in Deutschland, 15 (1), 56–60
Time-Response of Recent Prefilming Airblast Atomization Models in an Oscillating Air Flow Field
Chaussonnet, G.; Müller, A.; Holz, S.; Koch, R.; Bauer, H.-J.
2017. Journal of engineering for gas turbines and power, 139 (12), Art. Nr. 121501. doi:10.1115/1.4037325
Experimental and numerical investigation of the primary breakup of an airblasted liquid sheet
Warncke, K.; Gepperth, S.; Sauer, B.; Sadiki, A.; Janicka, J. E.; Koch, R.; Bauer, H. J.
2017. International journal of multiphase flow, 91, 208–224. doi:10.1016/j.ijmultiphaseflow.2016.12.010
Prediction of primary atomization using Smoothed Particle Hydrodynamics
Koch, R.; Braun, S.; Wieth, L.; Chaussonnet, G.; Dauch, T.; Bauer, H.-J.
2017. European journal of mechanics / B, 61 (Part 2), 271–278. doi:10.1016/j.euromechflu.2016.10.007
2016
Presentations
Numerical Modeling of Oil-Jet Lubrication for Spur Gears using Smoothed Particle Hydrodynamics
Keller, M. C.; Braun, S.; Wieth, L.; Chaussonnet, G.; Dauch, T.; Koch, R.; Höfler, C.; Bauer, H.-J.
2016. 11th International SPHERIC Workshop, Munich, Germany, 13th - 16th June 2016
Smoothed Particle Hydrodynamics for Numerical Predictions of Primary Atomization
Braun, S.; Koch, R.; Bauer, H.-J.
2016. High Performance Computing in Science & Engineering : 19th Results and Review Workshop of the HLRS, Stuttgart, Germany, 13.-14. October 2016
Conference Papers
Comparison of the Primary Atomization Model PAMELA with Drop Size Distributions of an Industrial Prefilming Airblast Nozzle
Holz, S.; Chaussonnet, G.; Gepperth, S.; Koch, R.; Bauer, H.-J.
2016. 27th Annual Conference on Liquid Atomization and Spray Systems, ILASS-Europe, Brighton, Great Britain, 4th - 7th September 2016
Smoothed Particle Hydrodynamics for Numerical Predictions of Primary Atomization
Braun, S.; Koch, R.; Bauer, H.-J.
2016. High Performance Computing in Science and Engineering ’16 - Transactions of the High Performance Computing Center, Stuttgart (HLRS) 2016. Ed.: W. Nagel, 321–336, Springer Verlag. doi:10.1007/978-3-319-47066-5_22
HPC Predictions of Primary Atomization with SPH: Challenges and Lessons Learned
Braun, S.; Wieth, L.; Dauch, T.; Keller, M. C.; Chaussonnet, G.; Höfler, C.; Koch, R.; Bauer, H.-J.
2016. 11th International SPHERIC Workshop (SPHERIC 2016), München, 13.-16. Juni 2016
Modeling of the Deformation Dynamics of Single and Twin Fluid Droplets Exposed to Aerodynamic Loads
Wieth, L.; Braun, S.; Chaussonnet, G.; Dauch, T. F.; Keller, M.; Höfler, C.; Koch, R.; Bauer, H.-J.
2016. High Performance Computing in Science and Engineering ’16 - Transactions of the High Performance Computing Center, Stuttgart (HLRS) 2016. Ed.: W. Nagel, 301–320, Springer Verlag. doi:10.1007/978-3-319-47066-5_21
Numerical Modeling of Oil-Jet Lubrication for Spur Gears using Smoothed Particle Hydrodynamics
Keller, M. C.; Braun, S.; Wieth, L.; Chaussonnet, G.; Dauch, T.; Koch, R.; Höfler, C.; Bauer, H.-J.
2016. Proceedings of the 11th International SPHERIC Workshop, Munich, June 13-16, 2016, 69–76
Modeling of the Deformation Dynamics of Single and Twin Fluid Droplets Exposed to Aerodynamic Loads
Wieth, L.; Braun, S.; Chaussonnet, G.; Dauch, T.; Keller, M. C.; Höfler, C.; Koch, R.; Bauer, H.-J.
2016. 27th Annual Conference on Liquid Atomization and Spray Systems, ILASS-Europe, Brighton, GB, September 4 - 7, 2016
Journal Articles
Smoothed Particle Hydrodynamics (SPH) simulation of a high-pressure homogenization process
Wieth, L.; Kelemen, K.; Braun, S.; Koch, R.; Bauer, H. J.; Schuchmann, H. P.
2016. Microfluidics and nanofluidics, 20 (2), 42. doi:10.1007/s10404-016-1705-6
2015
Reports/Preprints
Development of an Annular Combustor with Helical Arrangement of the Flames
Ariatabar, B.; Koch, R.; Bauer, H.-J.
2015. Forschungsvereinigung Verbrennungskraftmaschinen e.V. (FVV)
Conference Papers
SPH Simulation of a Twin-Fluid Atomizer Operating with a High Viscosity Liquid
Chaussonnet, G.; Braun, S.; Wieth, L.; Kolb, T.; Koch, R.; Bauer, H.-J.; Sänger, A.; Jakobs, T.; Djordjevic, N.
2015. 13th Triennial International Conference on Liquid Atomization and Spray Systems (ICLASS 2015), Tainan, TWN, August 23 - 27, 2015. Ed.: T. Lin, 1–8, National Cheng Kung University. doi:10.13140/RG.2.1.4320.7128
Influence of Trailing Edge Height on Primary Atomization : Numerical Studies Applying the Smoothed Particle Hydrodynamics (SPH) Method
Braun, S.; Wieth, L.; Koch, R.; Bauer, H.-J.
2015. ICLASS 2015, 13th Triennial International Conference on Liquid Atomization and Spray Systems, Tainan, Taiwan, 23-27 August 2015, Art. Nr. D1–2
A Framework for Permeable Boundary Conditions in SPH : Inlet, Outlet, Periodicity
Braun, S.; Wieth, L.; Koch, R.; Bauer, H.-J.
2015. Proceedings of the 10th Smoothed Particle Hydrodynamics European Research Interest Community Workshop (SPHERIC 2015), Parma, Italy, 16-18 June 2015, Monte Università Parma Editore
Simulation of Primary Atomization: Assessment of the Smoothed Particle Hydrodynamics (SPH) Method
Braun, S.; Krug, M.; Wieth, L.; Höfler, C.; Koch, R.; Bauer, H.-J.
2015. ICLASS 2015 / 13th International Conference on Liquid Atomization and Spray Systems : August 23-27, 2015, Tainan, Taiwan. Ed.: Ta-Hui Lin
Numerical Modeling of an Aero-Engine Bearing Chamber Using the Meshless Smoothed Particle Hydrodynamics Method
Wieth, L.; Lieber, C.; Kurz, W.; Braun, S.; Koch, R.; Bauer, H.-J.
2015. ASME Turbo Expo 2015: Turbine Technical Conference and Exposition, GT 2015, Montreal, CDN, June 15 - 19, 2015. Vol. 2 B, The American Society of Mechanical Engineers (ASME). doi:10.1115/GT2015-42316
Journal Articles
On the visualization of droplet deformation and breakup during high-pressure homogenization
Kelemen, K.; Gepperth, S.; Koch, R.; Bauer, H. J.; Schuchmann, H. P.
2015. Microfluidics and nanofluidics, 19 (5), 1139–1158. doi:10.1007/s10404-015-1631-z
2014
Conference Papers
Smoothed Particle Hydrodynamics (SPH) simulation of a high-pressure homogenizer
Wieth, L.; Braun, S.; Koch, R.; Bauer, H.-J.; Kelemen, K.; Schuchmann, H. P.
2014. Proceedings of the 9th International Smoothed Particle Hydrodynamics European Research Interest Community Workshop (SPHERIC 2014), 3-5 June 2014, Paris, France. Ed.: D. Violeau, 411–419, INSEAN
Primary atomization of prefilming airblast nozzles : Experimental studies using advanced image processing techniques
Gepperth, S.; Bärow, E.; Koch, R.; Bauer, H.-J.
2014. ILASS Europe, 26th Annual Conference on Liquid Atomization and Spray Systems, Bremen, Germany, 8-10 September 2014
Modeling of liquid-wall interaction using the Smoothed Particle Hydrodynamics (SPH) method
Wieth, L.; Braun, S.; Koch, R.; Bauer, H.-J.
2014. ILASS Europe, 26th Annual Conference on Liquid Atomization and Spray Systems, Bremen, Germany 8-10 September 2014
2013
Conference Papers
Modeling Fuel Injection in Gas Turbines Using the Meshless Smoothed Particle Hydrodynamics Method
Braun, S.; Höfler, C.; Koch, R.; Bauer, H.-J.
2013. Proceedings of the ASME Turbo Expo 2013 : Turbine Technical Conference and Exposition, Volume 1A : Combustion, Fuels and Emissions, San Antonio, Texas, USA, 3rd - 7th June 2013, Art.Nr. GT2013–94027, The American Society of Mechanical Engineers (ASME). doi:10.1115/GT2013-94027
Analysis and Comparison of Primary Droplet Characteristics in the Near Field of a Prefilming Airblast Atomizer
Gepperth, S.; Koch, R.; Bauer, H.-J.
2013. Proceedings of the ASME Turbo Expo 2013 : Turbine Technical Conference and Exposition, Vol. 1A : Combustion, Fuels and Emissions, San Antonio, Texas, USA, 3rd - 7th June 2013, Art.Nr. GT2013–94033, The American Society of Mechanical Engineers (ASME). doi:10.1115/GT2013-94033
2012
Conference Papers
Multiphase Flow Simulations Using the Meshfree Smoothed Particle Hydrodynamics Method
Höfler, C.; Braun, S.; Koch, R.; Bauer, H.-J.
2012. 12th Triennial International Conference on Liquid Atomization and Spray Systems, Heidelberg, Germany, September 2-6, 2012 (ICLASS). Hrsg.: E. Gutheil, 1–8, ILASS Europe
Journal Articles
Modeling Spray Formation in Gas Turbines : A New Meshless Approach
Hoefler, C.; Braun, S.; Koch, R.; Bauer, H.-J.
2012. Journal of engineering for gas turbines and power, 135 (1), Art. Nr. 011503. doi:10.1115/1.4007378
2010
Conference Papers
Entwicklung eines Smoothed Particle Hydrodynamics Codes zur numerischen Berechnung des Primärzerfalls an Brennstoffeinspritzdüsen
Höfler, C.; Koch, R.; Bauer, H.-J.
2010. Deutscher Luft- und Raumfahrtkongress 2010 : Hamburg, 31. August - 2. September 2010 ; Tagungsband, CD-ROM, Deutsche Gesellschaft für Luft- und Raumfahrt (DGLR)
2002
Book Chapters
Experimental investigation of unsteady flow phenomena in high intense combustion systems
Schildmacher, K.-U.; Koch, R.; Wittig, S.
2002. In: 6th European Conference on Industrial Furnaces and Boilers, INFUB, Estoril, Portugal 2002
2001
Journal Articles
Evaluation of advanced two-phase flow and combustion models for predicting low emission combustors
Klose, G.; Schmehl, R.; Meier, R.; Maier, G.; Koch, R.; Wittig, S.; Hettel, M.; Leuckel, W.; Zarzalis, N.
2001. Journal of engineering for gas turbines and power, 123 (4), 817–823
Comparison of state of the art droplet-turbulence interaction models for jet engine combustor conditions
Klose, G.; Rembold, B.; Koch, R.; Wittig, S.
2001. International journal of heat and fluid flow, 22 (3), 343–349
A conservation-based discretization approach for conjugate heat transfer calculations in hot-gas ducting turbomachinery components
Papanicolaou, E.; Giebert, D.; Koch, R.; Schulz, A.
2001. International Journal of Heat and Mass Transfer, 44 (18), 3413–3429
Book Chapters
Flashback in lean prevaporized premixed combustion: non-swirling turbulent pipe flow study
Schaefer, O.; Koch, R.; Wittig, S.
2001. In: Proceedings of the 46th ASME Turbo Expo, New Orleans, La. 2001. (ASME paper. 2001-GT-19052.)
Experimental and numerical investigation of the autoignition of fuel sprays of preheated flows
Cano-Wolff, M.; Koch, R.; Wittig, S.
2001. In: Verbrennung und Feuerungen. 20. Deutscher Flammentag, Essen 2001. Düsseldorf 2001. S. 301-306. (VDI-Berichte. 1629.)
Berechnungsverfahren für den Strahlungswärmeübergang in Brennkammern
Koch, R.; Ganz, B.; Wittig, S.
2001. In: 15. Tecflam-Seminar, 16. November 2000
A combined eulerian and lagrangian method for prediction of evaporating sprays
Burger, M.; Klose, G.; Schmehl, R.; Giebert, D.; Koch, R.; Wittig, S.
2001. In: Proceedings of the 46th ASME Turbo Expo, New Orleans, La. 2001. (ASME paper. 2001-GT-19046.)
2000
Books
Evaluation of advanced two-phase flow and combustion models for predicting low emission combustors
Klose, G.; Schmehl, R.; Meier, R.; Maier, G.; Koch, R.; Wittig, S.; Hettel, M.; Leuckel, W.; Zarzalis, N.
2000. 2000. (ASME paper. 2000-GT-0133.)
Book Chapters
Experimental investigations of the temporal air-fuel mixing fluctuations and cold flow instabilities of a premixing gas turbine burner
Schildmacher, K.-U.; Koch, R.; Wittig, S.; Krebs, W.; Hoffmann, S.
2000. In: 45th ASME International Gas Turbine Aeroengine Technical Congress, Munich, Germany 2000
Comparison of state of the art droplet-turbulence interaction models for aero-engine combustor engines
Klose, G.; Rembold, B.; Koch, R.; Wittig, S.
2000. In: Proceedings of the 3rd International Symposium on Turbulence, Heat and Mass Transfer, Nagoya, Japan 2000. Vol. 3. S. 763-770
Measurements of the periodic flow of an enclosed lean premixed prevaporized stagnation flame
Schaefer, O.; Koch, R.; Wittig, S.
2000. In: 10th International Symposium on Applications of Laser Techniques to Fluid Mechanics, Lisboa 2000
Flammenrückschlag - eine Instabilität in LPP-Brennkammern
Schaefer, O.; Koch, R.; Wittig, S.
2000. In: Fachausschußseminar des DGLR Fachausschusses T3 "Antriebe", Aachen 2000
1999
Reports/Preprints
Droplet evaporation and transport. Applied CFD, Task 1, BRITE/EURAM Low Nox Phase II Report
Klose, G.; Koch, R.; Wittig, S.
1999. Karlsruhe : Inst. f. Therm. Strömungsmasch. 1999
Journal Articles
Konzeption und Optimierung einer schadstoffarmen Kesselfeuerung
Eigenmann, L.; Freund, E.; Koch, R.; Schmidt, T.; Wittig, S.
1999. Wärmetech. - Versorgungstech. 1999 H. 1 S. 35-39
Books
Aufbau eines Filtermessverfahrens zur Untersuchung der Rußbildung in Gasturbinenbrennkammern
Murst, M.; Kellerer, H.; Prommersberger, K.; Koch, R.; Wittig, S.
1999. DGLR 1999
Book Chapters
Experimentelle und numerische Untersuchungen zum Strahlungswärmeaustausch am TECFLAM-Drallbrenner
Koch, R.; Ganz, B.; Schmittel, P.; Wittig, S.
1999. In: 14. TECFLAM-Seminar, CRAY TECFLAM Abschlusskolloquium, Darmstadt 1999
Prediction of a spray diffusion flame by a probability density function approach
Eigenmann, L.; Meisl, J.; Koch, R.; Wittig, S.
1999. In: 14th Computation Fluid Dynamics Conference, Norfolk, Va. 1999. Pap. AIAA-99-3370
1998
Journal Articles
Exploiting the flexibility of unstructured grids for computing complex flow patterns more precisely
Rexroth, C.-H.; Giebert, D.; Koch, R.; Wittig, S.
1998. Int. j. of heat and fluid flow 19 (1998) S. 439-445
A discretization approach for conjugate heat transfer and application to turbomachinery flows
Papanikolaou, E.; Giebert, D.; Koch, R.; Schulz, A.
1998. Proc. of the ASME Heat Transfer Div. 3 (1998) S. 349-362
Book Chapters
Numerical simulation of the two phase flow in a premix duct of a gas turbine combustor
Schmehl, R.; Koch, R.; Wittig, S.
1998. In: Abstract in high performance scientific supercomputing. Ed.: W. Juling. Karlsruhe : Sci. Supercomput. Center (SSC) 1998
Comparison of polydesperse spray simulations using the Eulerian and the Lagrangian approach
Klose, G.; Koch, R.; Wittig, S.
1998. In: Abstract in high performance scientific supercomputing. Ed.: W. Juling. Karlsruhe : Sci. Supercomput. Center (SSC) 1998
Effects of non-diffusive reflecting walls on radiative heat transfer in gas turbine combustors
Hirt, M.; Ganz, B.; Koch, R.; Wittig, S.
1998. In: Proceedings of the Eurotherm Seminar No. 56 "Heat Transfer in Radiating and Combustion Systems-3", Delphi, Greece 1998
Evaluation of advanced low-Reynolds number k-epsilon turbulence models for predicting convective heat transfer
Giebert, D.; Koch, R.; Schulz, A.; Wittig, S.
1998. In: Turbulent Heat Transfer II, Manchester, UK 1998
Timeresolved spectral radiation and acoustic measurements of a confined turbulent natural gas diffusion flame
Ganz, B.; Schmittel, P.; Koch, R.; Wittig, S.; Leuckel, W.
1998. In: 27th International Symposium on Combustion, Boulder, Colo. 1998
Validation of numerical methods at a confined turbulent natural gas diffusion flame considering detailed radiative transfer
Ganz, B.; Schmittel, P.; Koch, R.; Wittig, S.
1998. In: International Gas Turbine & Aeroengine Congress & Exhibition, Stockholm, Sweden 1998. S. 87-94
Spectral emissivity measurements of thermal barrier coatings
Ganz, B.; Krebs, W.; Koch, R.; Wittig, S.
1998. In: 7th AIAA/ASME Joint Thermophysics and Heat Transfer Conference, Albuquerque, NM 1998
The influence of evaporation on the autoignition-delay of n-heptane air mixtures under gas turbine conditions
Cano-Wolff, M.; Meisl, J.; Koch, R.; Wittig, S.
1998. In: 27th International Symposium on Combustion, Univ. of Boulder, Colo. 1998
Exploiting the adaptivity of unstructured grids to compute complex flow patterns more precisely
Rexroth, C.-H.; Koch, R.; Wittig, S.
1998. In: 11th Symposium on Turbulent Shear Flows, Grenoble, France 1997
1997
Book Chapters
Das Strahlungsmodul im CRAY-TECFLAM-Projekt
Koch, R.; Ganz, B.; Wittig, S.
1997. In: 13. TECFLAM Seminar, Köln-Porz 1997
Spectral radiation measurements at a confined turbulent natural gas diffusion flame
Ganz, B.; Schmittel, P.; Koch, R.; Lenze, B.; Wittig, S.
1997. In: International Symposium on Radiative Transfer, ICHMT, Kusadasi, Turkey 1997
Spektrale Strahlungsmessungen an einer eingeschlossenen turbulenten Erdgas Drall- Diffusionsflamme
Ganz, B.; Schmittel, P.; Koch, R.; Lenze, B.; Wittig, S.
1997. In: Verbrennung und Feuerungen. 18. Deutscher Flammentag. Düsseldorf 1997. S. 519-524. (VDI-Berichte. 1313.)
Strömungs- und wärmetechnische Optimierung einer KFZ-Kupplung mittels numerischer Simulation
Eigenmann, L.; Weissert, I.; Koch, R.; Wittig, S.
1997. In: Hochleistungsrechnen im Virtuellen Rechenzentrum Karlsruhe. Karlsruhe 1997. S. 23-33. (Wissenschaftliche Berichte. FZKA. 6040.)
Influence of pressure on NOsub(x)-emissions in rich-lean combustion
Meisl, J.; Koch, R.; Wittig, S.
1997. In: 13th International Symposium on Airbreathing Engines, ISABE 13, Chattanooga, Tenn. 1997
Validierung von PDF-Momentenansätzen mittels Messungen mit laserinduzierter Fluoreszenz
Eigenmann, L.; Meisl, J.; Koch, R.; Wittig, S.; Kraemer, H.; Sick, V.; Wolfrum, J.
1997. In: Verbrennung und Feuerungen. 18. Deutscher Flammentag. Düsseldorf 1997. S. 561-566. (VDI-Berichte. 1313.)
Untersuchung des NOsub(x)- Minderungspotentials von Heizkesselfeuerungen durch Fett-Mager-Verbrennung
Meisl, J.; Koch, R.; Wittig, S.; Klausmann, W.; Willmann, M.
1997. In: Verbrennung und Feuerungen. 18. Deutscher Flammentag. Düsseldorf 1997. S. 189-194. (VDI-Berichte. 1313.)
Rußwachstum bei hohen Drücken
Kellerer, H.; Koch, R.; Wittig, S.
1997. In: Verbrennung und Feuerungen. 18. Deutscher Flammentag. Düsseldorf 1997. S. 319-324. (VDI-Berichte. 1313.)
1996
Book Chapters
Gekoppelte Berechnung von Strahlung und reagierender Strömung in einer Modellbrennkammer
Ganz, B.; Koch, R.; Krebs, W.; Eigenmann, L.; Wittig, S.
1996. In: 12. Tecflam-Seminar "Fortschrittliche Verbrennungsmodelle und deren Anwendung", Darmstadt 1996
1995
Journal Articles
Discrete ordinate quadrature schemes for multidimensional radiative transfer
Koch, R.; Krebs, W.; Wittig, S.; Viskanta, R.
1995. J. of quantitative spectroscopy and radiat. transfer 53 (1995) S. 353-373
Book Chapters
Discrete ordinates quadrature schemes for multidimensional radiative transfer
Koch, R.; Krebs, W.; Wittig, S.; Viskanta, R.
1995. In: 1st International Symposium on Radiative Heat Transfer, ICHMT, Kusadasi, Turkey 1995
Three-dimensional spectral radiative heat transfer calculation in a cylindrical model combustor using the discrete ordinates method
Krebs, W.; Koch, R.; Bauer, H.-J.; Wittig, S.
1995. In: 1st International Symposium on Radiative Heat Transfer, ICHMT, Kusadasi, Turkey 1995
1994
Book Chapters
Numerical simulation of turbulent three-dimensional flow problems on parallel computing systems
Kurreck, M.; Koch, R.; Wittig, S.
1994. In: Numerical methods for the navier-stokes equations. Ed.: F.-K. Hebeker. Braunschweig 1994. S. 157-166. (Notes on numerical fluid mechanics. 47.)
Spectral and timeresolved radiation measurements in a model gas turbine combustor
Koch, R.; Krebs, W.; Jeckel, R.; Ganz, B.; Wittig, S.
1994. In: ASME International Gas Turbine and Aeroengine Congress and Exposition, The Hague, Netherlands 1994. 94-GT-403
Effect of turbulence on radiative heat transfer inside a model combustor
Krebs, W.; Koch, R.; Bauer, H.-J.; Kneer, R.; Wittig, S.
1994. In: Heat transfer radiating and combusting systems 2, Saluggia (Italy) 1994. S. 349-362. (Eurotherm seminar. 37.)
Study of NO emission characteristics in pressurized staged combustor concepts
Meisl, J.; Koch, R.; Kneer, R.; Wittig, S.
1994. In: 25th International Symposium on Combustion, Irvine, Calif., USA 1994
1992
Book Chapters
Multidimensional spectral calculation of radiative heat transfer in gas turbine combustors
Koch, R.; Krebs, W.; Wittig, S.
1992. In: ICHMT 1992 International Symposium on Heat Transfer in Turbomachinery, Athens, Greece
1991
Journal Articles
Book Chapters
Experimentelle Untersuchung des Waermetransports durch Strahlung in einer realen Gasturbinen-Brennkammer. Zwischenber. 1990 zu Vorhaben 3.8 des TECFLAM-Projekts
Wittig, S.; Koch, R.
1991. In: TECFLAM Projekt Mathematische Modellierung und Lasermesstechnik von Verbrennungsvorgaengen. PBE-Aktenz.: 03E-6325 A/B/C/D. Abschlussber. 1984-1989. Stuttgart, Karlsruhe 1990. S. 99-101
Influence of pressure and fuel on the soot formation and radiation in gas turbine combustors
Wittig, S.; Koch, R.
1991. In: TECFLAM Project Mathematical Modelling of Combustion Processes and Laser Measurement Techniques. PBE-Code: 03E-6225 A/B/C/D. Final report 1984-1989. Stuttgart, Karlsruhe 1990. S. 152-161
Einfluss von Druck und Brennstoff auf Russbildung und Strahlung in Gasturbinenbrennkammern
Wittig, S.; Koch, R.
1991. In: TECFLAM Projekt Mathematische Modellierung und Lasermesstechnik von Verbrennungsvorgaengen. PBE-Aktenz.: 03E-6325 A/B/C/D. Abschlussber. 1984-1989. Stuttgart, Karlsruhe 1990. S. 141-150
Optische Russmessung in einer Gasturbinenbrennkammer
Koch, R.; Mohr, H.-J.; Feld, H.-J.; Wittig, S.
1991. In: Verbrennung und Feuerungen. Duesseldorf 1991. S. 423-433. (VDI-Berichte. 922.)
In-situ soot measurements in an operating engine gas turbine combustor
Koch, R.; Wittig, S.; Feld, H.-J.; Mohr, H.-J.
1991. In: 36th International ASME Gas Turbine and Aeroengine Congress, Orlando, USA 1991. (ASME-paper. Nr. 177.)
1990
Book Chapters
Numerische Berechnung des spektralen Waermestrahlungsaustauschs in Gasturbinen- Brennkammern
Koch, R.; Wittig, S.
1990. In: 5. TECFLAM-Seminar, Stuttgart 1989. S. 55-69
Influence of the pressure-ratio on radiative heat-transfer in gas turbine combustors
Koch, R.; Wittig, S.; Noll, B.
1990. In: 7th Eurotherm Seminar on Heat Transfer in Radiating and Combusting Systems, Cascais, Portugal 1990. Paper 23-29
1989
Book Chapters
Einfluss der Tropfengroessenverteilung von Brennstoffduesen und der Betriebsparameter auf die Gasturbinen-Abgasemissionen
Wittig, S.; Noll, B.; Steinebrunner, K.; Feld, H.-J.; Jeckel, R.; Koch, R.
1989. In: Forschungsbericht. Sonderforschungsbereich 167 "Hochbelastete Brennraeume - Stationaere Gleichdruckverbrennung", Universitaet Karlsruhe (TH). 1987-1989. Karlsruhe 1989. S. 165-196