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Christopher R. Marks
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Proceedings Papers

Impact of High Freestream Turbulence on LPT Endwall Flow: Part I – Loss Development and Time-Averaged Flow Field

Molly H. Donovan, Christopher R. Marks, Nathan Fletcher, Markus P. Rumpfkeil
Proc. ASME. GT2024, Volume 12B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing, V12BT30A003, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-121345
https://doi.org/10.1115/GT2024-121345
View Paper titled, Impact of High Freestream Turbulence on LPT Endwall Flow: Part I – Loss Development and Time-Averaged Flow Field
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Topics: Flow (Dynamics), Free stream turbulence, Pressure, Turbines, Turbulence
Proceedings Papers

Validation of Transition Prediction of Baseline and High-Lift Airfoils in a Low Speed Cascade

Mary K. Jennerjohn Christianer, Bao Q. Nguyen, Daniel Rogers, Dietmar Giebert, Hakan Aksoy, Christopher R. Marks, Nathan J. Fletcher, John P. Clark
Proc. ASME. GT2024, Volume 12B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing, V12BT30A023, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-125253
https://doi.org/10.1115/GT2024-125253
View Paper titled, Validation of Transition Prediction of Baseline and High-Lift Airfoils in a Low Speed Cascade
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Topics: Airfoils, Cascades (Fluid dynamics), Pressure, Turbines, Reynolds number, Suction, Particle image velocimetry, Turbulence, Design, Engineering simulation
Proceedings Papers

The Onset of Low Reynolds Number Separation in High-Lift High-Work LPT Passages

Christopher R. Marks, Nathan Fletcher, Molly Donovan, John P. Clark
Proc. ASME. GT2024, Volume 12B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing, V12BT30A015, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-124273
https://doi.org/10.1115/GT2024-124273
View Paper titled, The Onset of Low Reynolds Number Separation in High-Lift High-Work LPT Passages
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Topics: Reynolds number, Separation (Technology), Blades, Flow (Dynamics), Pressure, Flow separation, Suction, Turbine blades, Turbines, Aircraft engines
Proceedings Papers

Impact of High Freestream Turbulence on LPT Endwall Flow – Part II: Endwall Flow Dynamics

Molly H. Donovan, Christopher R. Marks, Nathan Fletcher, Markus P. Rumpfkeil
Proc. ASME. GT2024, Volume 12B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing, V12BT30A016, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-124285
https://doi.org/10.1115/GT2024-124285
View Paper titled, Impact of High Freestream Turbulence on LPT Endwall Flow – Part II: Endwall Flow Dynamics
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Topics: Flow (Dynamics), Free stream turbulence, Pressure, Turbulence
Proceedings Papers

Low Reynolds Number Effects on the Endwall Flow Field in A High-Lift Turbine Passage

Molly H. Donovan, Markus P. Rumpfkeil, Christopher R. Marks, Zachary Robison, Andreas Gross
Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT30A010, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-81204
https://doi.org/10.1115/GT2022-81204
View Paper titled, Low Reynolds Number Effects on the Endwall Flow Field in A High-Lift Turbine Passage
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Topics: Flow (Dynamics), Reynolds number, Turbines, Pressure, Turbine blades, Vortices, Cascades (Fluid dynamics), Junctions, Large eddy simulation, Particulate matter
Proceedings Papers

Vortex Unsteadiness in the Endwall Region of a High-Lift Low-Pressure Turbine Passage

Christopher R. Marks, Nathan Fletcher, Rolf Sondergaard
Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT30A003, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-79335
https://doi.org/10.1115/GT2022-79335
View Paper titled, Vortex Unsteadiness in the Endwall Region of a High-Lift Low-Pressure Turbine Passage
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Topics: Pressure, Turbines, Vortices, Flow (Dynamics), Junctions, Blades, Cascades (Fluid dynamics), Fluctuations (Physics), Suction, Heat transfer
Journal Articles

Low Reynolds Number Effects on the Endwall Flow Field in a High-Lift Turbine Passage

Molly H. Donovan, Markus P. Rumpfkeil, Christopher R. Marks, Zachary Robison, Andreas Gross
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. March 2023, 145(3): 031006.
Paper No: TURBO-22-1221
https://doi.org/10.1115/1.4055646
Published Online: October 17, 2022
View Article titled, Low Reynolds Number Effects on the Endwall Flow Field in a High-Lift Turbine Passage
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Topics: Flow (Dynamics), Pressure, Reynolds number, Vortices, Boundary layers, Turbines
Journal Articles

Vortex Unsteadiness in the Endwall Region of a High-Lift Low-Pressure Turbine Passage

Christopher R. Marks, Nathan Fletcher, Rolf Sondergaard
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. January 2023, 145(1): 011012.
Paper No: TURBO-22-1167
https://doi.org/10.1115/1.4055444
Published Online: October 7, 2022
View Article titled, Vortex Unsteadiness in the Endwall Region of a High-Lift Low-Pressure Turbine Passage
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Topics: Flow (Dynamics), Vortices, Pressure, Turbines, Fluctuations (Physics)
Journal Articles

Comparison of Endwall Loss Reduction Techniques in a High-Lift Turbine Passage

Christopher R. Marks, Nathan Fletcher, Rolf Sondergaard
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. September 2021, 143(9): 091007.
Paper No: TURBO-20-1389
https://doi.org/10.1115/1.4050599
Published Online: May 11, 2021
View Article titled, Comparison of Endwall Loss Reduction Techniques in a High-Lift Turbine Passage
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Topics: Flow (Dynamics), Jets, Pressure, Turbines, Vortices, Design, Cascades (Fluid dynamics), Separation (Technology), Blades, Suction
Proceedings Papers

Comparison of Endwall Loss Reduction Techniques in a High-Lift Turbine Passage

Christopher R. Marks, Nathan Fletcher, Rolf Sondergaard
Proc. ASME. GT2020, Volume 2B: Turbomachinery, V02BT33A017, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15258
https://doi.org/10.1115/GT2020-15258
View Paper titled, Comparison of Endwall Loss Reduction Techniques in a High-Lift Turbine Passage
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Topics: Turbines, Flow (Dynamics), Blades, Cascades (Fluid dynamics), Design, Shapes, Corners (Structural elements), Jets, Particulate matter, Pressure
Proceedings Papers

Secondary Flow Response to Endwall Jets in a Low Pressure Turbine

Nathan Fletcher, Christopher R. Marks, Molly H. Donovan
Proc. ASME. GT2020, Volume 2B: Turbomachinery, V02BT33A018, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15284
https://doi.org/10.1115/GT2020-15284
View Paper titled, Secondary Flow Response to Endwall Jets in a Low Pressure Turbine
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Topics: Flow (Dynamics), Jets, Pressure, Turbines, Vortices, Blades, Cascades (Fluid dynamics), Design, Dynamics (Mechanics), Excitation
Journal Articles

Experimental Investigation of Total Pressure Loss Development in a Highly Loaded Low-Pressure Turbine Cascade

Philip Bear, Mitch Wolff, Andreas Gross, Christopher R. Marks, Rolf Sondergaard
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. March 2018, 140(3): 031003.
Paper No: TURBO-17-1167
https://doi.org/10.1115/1.4038413
Published Online: December 20, 2017
View Article titled, Experimental Investigation of Total Pressure Loss Development in a Highly Loaded Low-Pressure Turbine Cascade
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Topics: Blades, Cascades (Fluid dynamics), Flow (Dynamics), Pressure, Turbulence, Turbines, Suction
Proceedings Papers

Experimental Investigation of Total Pressure Loss Development in a Highly Loaded Low Pressure Turbine Cascade

Philip Bear, Mitch Wolff, Andreas Gross, Christopher R. Marks, Rolf Sondergaard
Proc. ASME. GT2017, Volume 2A: Turbomachinery, V02AT40A030, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-64684
https://doi.org/10.1115/GT2017-64684
View Paper titled, Experimental Investigation of Total Pressure Loss Development in a Highly Loaded Low Pressure Turbine Cascade
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Topics: Cascades (Fluid dynamics), Pressure, Turbines, Blades, Flow (Dynamics), Turbulence, Aircraft, Design methodology, Engines, Gas turbines
Journal Articles

Experimental Comparison of DBD Plasma Actuators for Low Reynolds Number Separation Control

Christopher R. Marks, Rolf Sondergaard, Mitch Wolff, Rich Anthony
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. January 2013, 135(1): 011024.
Paper No: TURBO-11-1154
https://doi.org/10.1115/1.4006517
Published Online: October 30, 2012
View Article titled, Experimental Comparison of DBD Plasma Actuators for Low Reynolds Number Separation Control
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Topics: Actuators, Plasmas (Ionized gases), Separation (Technology), Reynolds number, Flow (Dynamics)