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Michael Pfitzner
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Proceedings Papers

Conjugate Heat Transfer of Cylindrical and Trenched Film Cooling Designs With Array Jet Impingement

Lukas Fischer, Andrés Sanchez, Fabian Schleich, Fabian Feller, Richard Raffelt, Michael Pfitzner
Proc. ASME. GT2022, Volume 6A: Heat Transfer — Combustors; Film Cooling, V06AT12A011, June 13–17, 2022
Paper No: GT2022-80810
DOI: https://doi.org/10.1115/GT2022-80810
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Topics: Film cooling, Heat transfer, Cooling, Heat transfer coefficients, Reynolds number, Density, Design, Engines, Flow (Dynamics), Heat flux
Journal Articles

Investigating the Influence of Mainstream Turbulence and Large Vortices on Gas Turbine Trenched Film Cooling Flows Using Planar Temperature-Velocity Imaging

Michael Straußwald, Tobias Sander, Christopher Abram, Michael Pfitzner
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. October 2022, 144(10): 101013.
Paper No: TURBO-21-1260
DOI: https://doi.org/10.1115/1.4054215
Published Online: July 4, 2022
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Topics: Cooling, Film cooling, Flow (Dynamics), Temperature, Turbulence, Momentum, Geometry, Vortices
Journal Articles

Analysis of Large Eddy Simulations and 1D Hot-Wire Data to Determine Actively Generated Main Flow Turbulence in a Film Cooling Test Rig

Lukas Fischer, Michael Straußwald, Michael Pfitzner
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. November 2022, 144(11): 111003.
Paper No: TURBO-21-1282
DOI: https://doi.org/10.1115/1.4054778
Published Online: July 4, 2022
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Topics: Film cooling, Probes, Turbulence, Generators, Wire, Flow (Dynamics)
Journal Articles

Characterization of a Newly Designed Test Bench for Investigations of Flame–Wall Interaction

Rahand Dalshad, Tobias Sander, Michael Pfitzner
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2022, 144(4): 041006.
Paper No: GTP-21-1423
DOI: https://doi.org/10.1115/1.4052264
Published Online: January 13, 2022
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Topics: Flames, Flow (Dynamics), Fuels, Lasers, Methane, Temperature, Heat, Temperature measurement, Chemiluminescence, Generators
Proceedings Papers

Characterization of a Newly Designed Test Bench for Investigations of Flame-Wall-Interaction

Rahand Dalshad, Tobias Sander, Michael Pfitzner
Proc. ASME. GT2021, Volume 3A: Combustion, Fuels, and Emissions, V03AT04A043, June 7–11, 2021
Paper No: GT2021-59170
DOI: https://doi.org/10.1115/GT2021-59170
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Topics: Flames, Combustion chambers, Combustion, Heat, Atmospheric pressure, Chemiluminescence, Design, Engines, Fluorescence, Heat conduction
Proceedings Papers

Analysis of LES and 1D Hot-Wire Data to Determine Actively Generated Main Flow Turbulence in a Film Cooling Test Rig

Lukas Fischer, Michael Straußwald, Michael Pfitzner
Proc. ASME. GT2021, Volume 5A: Heat Transfer — Combustors; Film Cooling, V05AT12A002, June 7–11, 2021
Paper No: GT2021-58661
DOI: https://doi.org/10.1115/GT2021-58661
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Topics: Film cooling, Flow (Dynamics), Turbulence, Wire, Probes, Generators, Signals, Vortices, Anisotropy, Combustion chambers
Journal Articles

Correlations for the Choked Mass and Momentum Flux Density Considering Real-Gas Thermodynamics

Matthias Banholzer, Michael Pfitzner
Journal: Journal of Fluids Engineering
Article Type: Research-Article
J. Fluids Eng. August 2019, 141(8): 081202.
Paper No: FE-18-1617
DOI: https://doi.org/10.1115/1.4042376
Published Online: January 30, 2019
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Topics: Density, Fluids, Methane, Momentum, Nitrogen, Pressure, Temperature, Nozzles, Computational fluid dynamics, Speed of sound
eBook Chapter

Temperature and Pressure Effects on Cavitation Erosion in Diesel-Like Fuels

Series: ASME Press Select Proceedings
Publisher: ASME Press
Published: 2018
ISBN: 9780791861851
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Topics: Cavitation erosion, Diesel, Fuels, Pressure, Temperature
Journal Articles

Development of a RANS Premixed Turbulent Combustion Model Based on the Algebraic Flame Surface Density Concept

Usman Allauddin, Michael Pfitzner
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2019, 141(2): 021025.
Paper No: GTP-18-1186
DOI: https://doi.org/10.1115/1.4041308
Published Online: October 10, 2018
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Topics: Combustion, Density, Flames, Reynolds-averaged Navier–Stokes equations, Turbulence, Algebra, Pressure, Large eddy simulation, Fuels, Methane
Proceedings Papers

Active Turbulence Generation for Film Cooling Investigations

Amirabas Bakhtiari, Tobias Sander, Michael Straußwald, Michael Pfitzner
Proc. ASME. GT2018, Volume 5C: Heat Transfer, V05CT19A026, June 11–15, 2018
Paper No: GT2018-76451
DOI: https://doi.org/10.1115/GT2018-76451
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Topics: Film cooling, Turbulence, Flow (Dynamics), Rotation, Cooling, Databases, Design, Gas turbines, Heat, Stress
Proceedings Papers

High-Speed Velocity Measurements of Film Cooling Applications at High-Turbulence Main Flow Conditions

Michael Straußwald, Tobias Sander, Amirabas Bakhtiari, Michael Pfitzner
Proc. ASME. GT2018, Volume 5C: Heat Transfer, V05CT19A027, June 11–15, 2018
Paper No: GT2018-76458
DOI: https://doi.org/10.1115/GT2018-76458
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Topics: Film cooling, Flow (Dynamics), Turbulence, Velocity measurement, Cooling, Momentum, Vortices, Eddies (Fluid dynamics), Fluctuations (Physics), Jets
Proceedings Papers

Experimental and Numerical Investigation of Turbulent Mixing in Film Cooling Applications

Michael Straußwald, Karin Schmid, Hagen Müller, Michael Pfitzner
Proc. ASME. GT2017, Volume 5C: Heat Transfer, V05CT19A024, June 26–30, 2017
Paper No: GT2017-64650
DOI: https://doi.org/10.1115/GT2017-64650
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Topics: Film cooling, Turbulence, Flow (Dynamics), Cooling, Heat flux, Reynolds-averaged Navier–Stokes equations, Coolants, Density, Design, Diffusion (Physics)
Journal Articles

Heat Transfer Measurements Downstream of Trenched Film Cooling Holes Using a Novel Optical Two-Layer Measurement Technique

Peter Schreivogel, Michael Pfitzner
Journal: Journal of Turbomachinery
Article Type: Research-Article
J. Turbomach. March 2016, 138(3): 031003.
Paper No: TURBO-15-1211
DOI: https://doi.org/10.1115/1.4031919
Published Online: November 24, 2015
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Topics: Cooling, Film cooling, Heat transfer, Heat transfer coefficients, Momentum, Density, Coolants, Flow (Dynamics)
Proceedings Papers

Effect of Shaft Rotation, Hole and Annulus Geometry on the Discharge Behavior Through Rotating Radial Holes

Daniel Riedmüller, Jan Sousek, Michael Pfitzner
Proc. ASME. GT2015, Volume 5C: Heat Transfer, V05CT15A002, June 15–19, 2015
Paper No: GT2015-42044
DOI: https://doi.org/10.1115/GT2015-42044
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Topics: Annulus, Geometry, Rotation, Flow (Dynamics), Discharge coefficient, Computational fluid dynamics, Coriolis force, Mach number, Mesh generation, Optimization
Proceedings Papers

Development of an Advanced Automated Knowledge Based Combustor Preliminary Design Process Suitable for Low NOx Combustion Systems Optimization

Maxim Gessel, Michael Pfitzner, Ruud Eggels
Proc. ASME. GT2015, Volume 4A: Combustion, Fuels and Emissions, V04AT04A029, June 15–19, 2015
Paper No: GT2015-42328
DOI: https://doi.org/10.1115/GT2015-42328
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Topics: Combustion chambers, Combustion systems, Design, Nitrogen oxides, Optimization, Computational fluid dynamics, Boundary-value problems, Computer-aided design, Databases, Combustion
Proceedings Papers

Heat Transfer Measurements Downstream of Trenched Film Cooling Holes Using a Novel Optical Two-Layer Measurement Technique

Peter Schreivogel, Michael Pfitzner
Proc. ASME. GT2015, Volume 5B: Heat Transfer, V05BT12A012, June 15–19, 2015
Paper No: GT2015-42385
DOI: https://doi.org/10.1115/GT2015-42385
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Topics: Film cooling, Heat transfer, Cooling, Heat flux, Heat transfer coefficients, Boundary-value problems, Bubbles, Coolants, Density, Momentum
Journal Articles

Heat Transfer in Reacting Cooling Films: Influence and Validation of Combustion Modeling in Numerical Simulations

Stephanie Pohl, Gabriele Frank, Michael Pfitzner
Journal: Journal of Turbomachinery
Article Type: Research-Article
J. Turbomach. August 2015, 137(8): 081003.
Paper No: TURBO-14-1284
DOI: https://doi.org/10.1115/1.4029350
Published Online: August 1, 2015
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Topics: Combustion, Cooling, Modeling, Temperature, Turbulence, Coolants, Flow (Dynamics), Fuels, Equilibrium (Physics), Heat transfer
Journal Articles

A Comprehensive Investigation of Preswirled Flow Through Rotating Radial Holes

Daniel Riedmüller, Jan Sousek, Michael Pfitzner
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. March 2015, 137(3): 031504.
Paper No: GTP-14-1376
DOI: https://doi.org/10.1115/1.4028375
Published Online: October 7, 2014
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Topics: Flow (Dynamics)
Proceedings Papers

A Comprehensive Investigation of Pre-Swirled Flow Through Rotating Radial Holes

Daniel Riedmüller, Jan Sousek, Michael Pfitzner
Proc. ASME. GT2014, Volume 5C: Heat Transfer, V05CT16A003, June 16–20, 2014
Paper No: GT2014-25102
DOI: https://doi.org/10.1115/GT2014-25102
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Topics: Flow (Dynamics), Orifices, Discharge coefficient, Annulus, Computational fluid dynamics, Computer simulation, Coriolis force, Gas turbines, Mach number, Mesh generation
Proceedings Papers

Heat Transfer in Reacting Cooling Films: Part II — Modelling Near-Wall Effects in Non-Premixed Combustion With OpenFOAM

Gabriele Frank, Stephanie Pohl, Michael Pfitzner
Proc. ASME. GT2014, Volume 5C: Heat Transfer, V05CT18A002, June 16–20, 2014
Paper No: GT2014-25215
DOI: https://doi.org/10.1115/GT2014-25215
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Topics: Combustion, Cooling, Heat transfer, Modeling, Enthalpy, Density, Flat plates, Heat flux, Heat losses, Probability