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Proceedings Papers

Criteria for the Occurrence of Tip Leakage Flow Induced Rotating Instability

Xiangyi Chen, Martin Lange, Björn Koppe, Christoph Jasmund, Wuli Chu, Ronald Mailach
Proc. ASME. GT2024, Volume 12D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V12DT36A014, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-126921
https://doi.org/10.1115/GT2024-126921
View Paper titled, Criteria for the Occurrence of Tip Leakage Flow Induced Rotating Instability
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Topics: Compressors, Leakage flows
Journal Articles

On the Origin of “Rotating Instabilities”—Stability and Frequency Studies of Channel Flows

Helmut Sauer, Martin Lange
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Technical Briefs
J. Turbomach. October 2024, 146(10): 104501.
Paper No: TURBO-22-1089
https://doi.org/10.1115/1.4065158
Published Online: April 23, 2024
View Article titled, On the Origin of “Rotating Instabilities”—Stability and Frequency Studies of Channel Flows
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Topics: Channel flow, Compressors, Flow (Dynamics), Stability, Turbulence, Reynolds number, Design
Proceedings Papers

Effect of Incoming Wakes on the Passage Flow of an Axial Compressor Rotor

Björn Koppe, Martin Lange, Ronald Mailach
Proc. ASME. GT2023, Volume 13A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V13AT29A023, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102268
https://doi.org/10.1115/GT2023-102268
View Paper titled, Effect of Incoming Wakes on the Passage Flow of an Axial Compressor Rotor
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Topics: Compressors, Flow (Dynamics), Leakage, Rotors, Stators, Vortices, Wakes
Journal Articles

Influence of Casing Groove on Rotating Instabilities in a Low-Speed Axial Compressor

Xiangyi Chen, Björn Koppe, Martin Lange, Wuli Chu, Ronald Mailach
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2023, 145(7): 071015.
Paper No: TURBO-22-1238
https://doi.org/10.1115/1.4056863
Published Online: March 2, 2023
View Article titled, Influence of Casing Groove on Rotating Instabilities in a Low-Speed Axial Compressor
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Topics: Blades, Compressors, Flow (Dynamics), Pressure, Rotors
Proceedings Papers

Influence of Casing Groove on Rotating Instabilities in a Low-Speed Axial Compressor

Xiangyi Chen, Björn Koppe, Martin Lange, Wuli Chu, Ronald Mailach
Proc. ASME. GT2022, Volume 10D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Turbomachinery General Interest; Unsteady Flows in Turbomachinery, V10DT37A014, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82101
https://doi.org/10.1115/GT2022-82101
View Paper titled, Influence of Casing Groove on Rotating Instabilities in a Low-Speed Axial Compressor
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Topics: Compressors, Flow (Dynamics)
Journal Articles

Effects of Rotation on the Flow Structure in a Compressor Cascade

Jordi Ventosa-Molina, Björn Koppe, Martin Lange, Ronald Mailach, Jochen Fröhlich
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. August 2022, 144(8): 081006.
Paper No: TURBO-21-1247
https://doi.org/10.1115/1.4053537
Published Online: March 3, 2022
View Article titled, Effects of Rotation on the Flow Structure in a Compressor Cascade
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Topics: Blades, Coriolis force, Flow (Dynamics), Rotation, Vortices, Cascades (Fluid dynamics), Pressure, Simulation
Proceedings Papers

Effects of Rotation on the Flow Structure in a Compressor Cascade

Jordi Ventosa-Molina, Björn Koppe, Martin Lange, Ronald Mailach, Jochen Fröhlich
Proc. ASME. GT2021, Volume 2A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V02AT31A016, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-58793
https://doi.org/10.1115/GT2021-58793
View Paper titled, Effects of Rotation on the Flow Structure in a Compressor Cascade
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Topics: Cascades (Fluid dynamics), Compressors, Flow (Dynamics), Rotation, Turbulence, Coriolis force, Engineering simulation, Rotors, Simulation, Blades
Proceedings Papers

Performance of Unsteady Reynolds-Averaged Navier-Stokes and Hybrid Scale-Resolving Simulation Approaches in Simulating a Low-Speed Axial Compressor Rotor

Xiangyi Chen, Björn Koppe, Martin Lange, Wuli Chu, Ronald Mailach
Proc. ASME. GT2021, Volume 2C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V02CT34A010, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-59028
https://doi.org/10.1115/GT2021-59028
View Paper titled, Performance of Unsteady Reynolds-Averaged Navier-Stokes and Hybrid Scale-Resolving Simulation Approaches in Simulating a Low-Speed Axial Compressor Rotor
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Topics: Aerodynamics, Compressors, Large eddy simulation, Rotors, Simulation, Turbomachinery
Journal Articles

Influence of Boundary Layer Skew on the Tip Leakage Vortex of an Axial Compressor Stator

Björn Koppe, Martin Lange, Ronald Mailach
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. September 2021, 143(9): 091016.
Paper No: TURBO-20-1402
https://doi.org/10.1115/1.4050628
Published Online: May 12, 2021
View Article titled, Influence of Boundary Layer Skew on the Tip Leakage Vortex of an Axial Compressor Stator
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Topics: Clearances (Engineering), Computational fluid dynamics, Flow (Dynamics), Pressure, Stators, Vortices, Compressors, Leakage, Boundary layers
Journal Articles

Investigation of Unsteady Pressure Fluctuations in a Simplified Steam Turbine Control Valve

Christian Windemuth, Martin Lange, Ronald Mailach
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. August 2021, 143(8): 081017.
Paper No: GTP-20-1603
https://doi.org/10.1115/1.4049763
Published Online: March 31, 2021
View Article titled, Investigation of Unsteady Pressure Fluctuations in a Simplified Steam Turbine Control Valve
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Topics: Flow (Dynamics), Pressure, Valves, Diffusers
Proceedings Papers

Investigation of Unsteady Pressure Fluctuations in a Simplified Steam Turbine Control Valve

Christian Windemuth, Martin Lange, Ronald Mailach
Proc. ASME. GT2020, Volume 9: Oil and Gas Applications; Organic Rankine Cycle Power Systems; Steam Turbine, V009T23A009, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14632
https://doi.org/10.1115/GT2020-14632
View Paper titled, Investigation of Unsteady Pressure Fluctuations in a Simplified Steam Turbine Control Valve
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Topics: Fluctuations (Physics), Pressure, Steam turbines, Valves, Stress, Flow (Dynamics), Shapes, Boilers, Couplings, Diffusers
Proceedings Papers

Study of Relative Endwall Motion Effects in a Compressor Cascade Through Direct Numerical Simulations

Jordi Ventosa-Molina, Martin Lange, Ronald Mailach, Jochen Fröhlich
Proc. ASME. GT2020, Volume 2A: Turbomachinery, V02AT32A025, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14612
https://doi.org/10.1115/GT2020-14612
View Paper titled, Study of Relative Endwall Motion Effects in a Compressor Cascade Through Direct Numerical Simulations
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Topics: Cascades (Fluid dynamics), Compressors, Computer simulation, Blades, Flow (Dynamics), Leakage, Pressure, Turbomachinery, Vortices, Wakes
Proceedings Papers

Influence of Boundary Layer Skew on the Tip Leakage Vortex of an Axial Compressor Stator

Björn Koppe, Martin Lange, Ronald Mailach
Proc. ASME. GT2020, Volume 2A: Turbomachinery, V02AT32A061, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15940
https://doi.org/10.1115/GT2020-15940
View Paper titled, Influence of Boundary Layer Skew on the Tip Leakage Vortex of an Axial Compressor Stator
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Topics: Boundary layers, Compressors, Leakage, Stators, Vortices, Flow (Dynamics), Chords (Trusses), Clearances (Engineering), Computational fluid dynamics, Engineering simulation
Journal Articles

Study of Relative Endwall Motion Effects in a Compressor Cascade Through Direct Numerical Simulations

Jordi Ventosa-Molina, Martin Lange, Ronald Mailach, Jochen Fröhlich
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. January 2021, 143(1): 011005.
Paper No: TURBO-20-1227
https://doi.org/10.1115/1.4049101
Published Online: December 28, 2020
View Article titled, Study of Relative Endwall Motion Effects in a Compressor Cascade Through Direct Numerical Simulations
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Topics: Blades, Compressors, Flow (Dynamics), Pressure, Vortices, Cascades (Fluid dynamics), Computer simulation
Journal Articles

Experimental Study on the Influence of Film Cooling Hole Extraction on Heat Transfer and Flow Field in Internal Ribbed Cooling Channels of Turbine Blades

Marlene Böttger, Martin Lange, Ronald Mailach, Konrad Vogeler
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. October 2020, 142(10): 101005.
Paper No: TURBO-19-1166
https://doi.org/10.1115/1.4047608
Published Online: September 14, 2020
View Article titled, Experimental Study on the Influence of Film Cooling Hole Extraction on Heat Transfer and Flow Field in Internal Ribbed Cooling Channels of Turbine Blades
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Topics: Cooling, Flow (Dynamics), Heat transfer, Film cooling
Proceedings Papers

The Influence of Circumferential Grooves on the Flutter Stability of a Transonic Fan

Matthias Kniefs, Martin Lange, Ronald Mailach, Senad Iseni, Derek Micallef, Francesca di Mare
Proc. ASME. GT2018, Volume 7C: Structures and Dynamics, V07CT36A017, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-76422
https://doi.org/10.1115/GT2018-76422
View Paper titled, The Influence of Circumferential Grooves on the Flutter Stability of a Transonic Fan
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Topics: Flutter (Aerodynamics), Stability, Computational fluid dynamics, Blades, Fluid structure interaction, Simulation, Traveling waves, Vibration, Aerodynamic noise, Aerodynamics
Journal Articles

Periodic Unsteady Tip Clearance Vortex Development in a Low-Speed Axial Research Compressor at Different Tip Clearances

Martin Lange, Matthias Rolfes, Ronald Mailach, Henner Schrapp
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. March 2018, 140(3): 031005.
Paper No: TURBO-17-1181
https://doi.org/10.1115/1.4038319
Published Online: December 20, 2017
View Article titled, Periodic Unsteady Tip Clearance Vortex Development in a Low-Speed Axial Research Compressor at Different Tip Clearances
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Topics: Blades, Clearances (Engineering), Compressors, Flow (Dynamics), Pressure, Rotors, Stators, Vortices, Wakes, Design
Journal Articles

Experimental and Numerical Investigation of a Circumferential Groove Casing Treatment in a Low-Speed Axial Research Compressor at Different Tip Clearances

Matthias Rolfes, Martin Lange, Konrad Vogeler, Ronald Mailach
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. December 2017, 139(12): 121009.
Paper No: TURBO-17-1125
https://doi.org/10.1115/1.4037822
Published Online: October 3, 2017
View Article titled, Experimental and Numerical Investigation of a Circumferential Groove Casing Treatment in a Low-Speed Axial Research Compressor at Different Tip Clearances
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Topics: Clearances (Engineering), Compressors, Flow (Dynamics), Pressure, Rotors, Blades, Leakage, Computational fluid dynamics, Chords (Trusses), Vortices
Proceedings Papers

Periodic Unsteady Tip Clearance Vortex Development in a Low Speed Axial Research Compressor at Different Tip Clearances

Martin Lange, Matthias Rolfes, Ronald Mailach, Henner Schrapp
Proc. ASME. GT2017, Volume 2D: Turbomachinery, V02DT46A023, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-64256
https://doi.org/10.1115/GT2017-64256
View Paper titled, Periodic Unsteady Tip Clearance Vortex Development in a Low Speed Axial Research Compressor at Different Tip Clearances
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Topics: Clearances (Engineering), Compressors, Vortices, Rotors, Stators, Flow (Dynamics), Pressure, Reynolds-averaged Navier–Stokes equations, Turbulence, Wakes
Proceedings Papers

Experimental and Numerical Investigation of a Circumferential Groove Casing Treatment in a Low Speed Axial Research Compressor at Different Tip Clearances

Matthias Rolfes, Martin Lange, Konrad Vogeler, Ronald Mailach
Proc. ASME. GT2017, Volume 2A: Turbomachinery, V02AT39A003, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-63051
https://doi.org/10.1115/GT2017-63051
View Paper titled, Experimental and Numerical Investigation of a Circumferential Groove Casing Treatment in a Low Speed Axial Research Compressor at Different Tip Clearances
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Topics: Compressors, Clearances (Engineering), Pressure, Rotors, Chords (Trusses), Blades, Flow (Dynamics), High pressure (Physics), Pressure measurement, Probes