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Alexander Hergt
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Journal Articles

A Numerical Test Rig for Turbomachinery Flows Based on Large Eddy Simulations With a High-Order Discontinuous Galerkin Scheme—Part II: Shock Capturing and Transonic Flows

Bjoern F. Klose, Christian Morsbach, Michael Bergmann, Alexander Hergt, Joachim Klinner, Sebastian Grund, Edmund Kügeler
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. February 2024, 146(2): 021006.
Paper No: TURBO-23-1169
https://doi.org/10.1115/1.4063827
Published Online: November 13, 2023
View Article titled, A Numerical Test Rig for Turbomachinery Flows Based on Large Eddy Simulations With a High-Order Discontinuous Galerkin Scheme—Part II: Shock Capturing and Transonic Flows
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Topics: Flow (Dynamics), Shock (Mechanics), Cascades (Fluid dynamics), Compressors, Simulation, Turbines, Large eddy simulation
Proceedings Papers

A Numerical Test Rig for Turbomachinery Flows Based on Large Eddy Simulations With a High-Order Discontinuous Galerkin Scheme - Part 2: Shock-Capturing and Transonic Flows

Björn F. Klose, Christian Morsbach, Michael Bergmann, Alexander Hergt, Joachim Klinner, Sebastian Grund, Edmund Kügeler
Proc. ASME. GT2023, Volume 13D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V13DT36A008, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101891
https://doi.org/10.1115/GT2023-101891
View Paper titled, A Numerical Test Rig for Turbomachinery Flows Based on Large Eddy Simulations With a High-Order Discontinuous Galerkin Scheme - Part 2: Shock-Capturing and Transonic Flows
Open the PDF for A Numerical Test Rig for Turbomachinery Flows Based on Large Eddy Simulations With a High-Order Discontinuous Galerkin Scheme - Part 2: Shock-Capturing and Transonic Flows in another window
Topics: Flow (Dynamics), Large eddy simulation, Shock (Mechanics), Transonic flow, Turbomachinery
Proceedings Papers

Investigations of the Unsteady Shock-Boundary Layer Interaction in a Transonic Compressor Cascade

Edwin J. Munoz Lopez, Alexander Hergt, Joachim Klinner, Sebastian Grund, Jirair Karboujian, Jasmin Flamm, Volker Gümmer
Proc. ASME. GT2023, Volume 13D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V13DT36A015, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102622
https://doi.org/10.1115/GT2023-102622
View Paper titled, Investigations of the Unsteady Shock-Boundary Layer Interaction in a Transonic Compressor Cascade
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Topics: Cascades (Fluid dynamics), Compressors, Shock (Mechanics)
Proceedings Papers

On the Shock Boundary Layer Interaction in Transonic Compressor Blading

Alexander Hergt, Björn Klose, Joachim Klinner, Michael Bergmann, Edwin Joseph Munoz Lopez, Sebastian Grund, Christian Morsbach
Proc. ASME. GT2023, Volume 13A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V13AT29A035, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103218
https://doi.org/10.1115/GT2023-103218
View Paper titled, On the Shock Boundary Layer Interaction in Transonic Compressor Blading
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Topics: Boundary layers, Compressors, Shock (Mechanics)
Journal Articles

The New Chapter of Transonic Compressor Cascade Design at the DLR

Edwin J. Munoz Lopez, Alexander Hergt, Sebastian Grund, Volker Gümmer
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. August 2023, 145(8): 081001.
Paper No: TURBO-22-1193
https://doi.org/10.1115/1.4056982
Published Online: April 3, 2023
View Article titled, The New Chapter of Transonic Compressor Cascade Design at the DLR
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Topics: Cascades (Fluid dynamics), Compressors, Design, Optimization, Computational fluid dynamics, Airfoils, Pressure
Proceedings Papers

The New Chapter of Transonic Compressor Cascade Design at the DLR

Edwin J. Munoz Lopez, Alexander Hergt, Sebastian Grund
Proc. ASME. GT2022, Volume 1: Aircraft Engine; Ceramics and Ceramic Composites, V001T01A005, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-80189
https://doi.org/10.1115/GT2022-80189
View Paper titled, The New Chapter of Transonic Compressor Cascade Design at the DLR
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Topics: Cascades (Fluid dynamics), Compressors, Design, Optimization, Blades, Wind tunnels, Transonic flow, Chain, Computational fluid dynamics, Engineering simulation
Journal Articles

Aero-Structural Coupling Strategy for a Morphing Blade Cascade Study

Giada Abate, Johannes Riemenschneider, Alexander Hergt
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. June 2022, 144(6): 061002.
Paper No: TURBO-21-1095
https://doi.org/10.1115/1.4053174
Published Online: January 28, 2022
View Article titled, Aero-Structural Coupling Strategy for a Morphing Blade Cascade Study
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Topics: Actuators, Blades, Cascades (Fluid dynamics), Computational fluid dynamics, Geometry, Pressure, Stress, Structural analysis, Airfoils
Journal Articles

On the Importance of Transition Control at Transonic Compressor Blades

Alexander Hergt, J. Klinner, S. Grund, C. Willert, W. Steinert, M. Beversdorff
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. March 2021, 143(3): 031007.
Paper No: TURBO-20-1102
https://doi.org/10.1115/1.4049783
Published Online: March 1, 2021
View Article titled, On the Importance of Transition Control at Transonic Compressor Blades
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Topics: Blades, Boundary layers, Cascades (Fluid dynamics), Compressors, Oscillations, Shock (Mechanics), Flow (Dynamics), Separation (Technology), Suction, Flow control
Journal Articles

Some Aspects of the Transonic Compressor Tandem Design

Alexander Hergt, S. Grund, J. Klinner, W. Steinert, M. Beversdorff, U. Siller
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. September 2019, 141(9): 091003.
Paper No: TURBO-18-1243
https://doi.org/10.1115/1.4043280
Published Online: May 30, 2019
View Article titled, Some Aspects of the Transonic Compressor Tandem Design
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Topics: Blades, Cascades (Fluid dynamics), Compressors, Design, Optimization, Flow (Dynamics), Mach number, Wakes
Journal Articles

The Present Challenge of Transonic Compressor Blade Design

Alexander Hergt, J. Klinner, J. Wellner, C. Willert, S. Grund, W. Steinert, M. Beversdorff
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. September 2019, 141(9): 091004.
Paper No: TURBO-18-1244
https://doi.org/10.1115/1.4043329
Published Online: May 30, 2019
View Article titled, The Present Challenge of Transonic Compressor Blade Design
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Topics: Blades, Boundary layers, Cascades (Fluid dynamics), Compressors, Design, Flow (Dynamics), Shock (Mechanics), Shock waves, Turbulence, Suction
Journal Articles

Riblet Application in Compressors: Toward Efficient Blade Design

Alexander Hergt, W. Hage, S. Grund, W. Steinert, M. Terhorst, F. Schongen, Y. Wilke
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. November 2015, 137(11): 111006.
Paper No: TURBO-15-1103
https://doi.org/10.1115/1.4031090
Published Online: September 16, 2015
View Article titled, Riblet Application in Compressors: Toward Efficient Blade Design
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Topics: Blades, Cascades (Fluid dynamics), Compressors, Design, Optimization, Reynolds number, Manufacturing, Pressure, Flow (Dynamics)
Proceedings Papers

Endwall Contouring and Fillet Design for Reducing Losses and Homogenizing the Outflow of a Compressor Cascade

Oliver Reutter, Stefan Hemmert-Pottmann, Alexander Hergt, Eberhard Nicke
Proc. ASME. GT2014, Volume 2A: Turbomachinery, V02AT37A007, June 16–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: GT2014-25277
https://doi.org/10.1115/GT2014-25277
View Paper titled, Endwall Contouring and Fillet Design for Reducing Losses and Homogenizing the Outflow of a Compressor Cascade
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Topics: Cascades (Fluid dynamics), Compressors, Design, Outflow, Pressure, Inflow, Blades, Corners (Structural elements), Flow (Dynamics), Mach number
Journal Articles

The Effect of an Eroded Leading Edge on the Aerodynamic Performance of a Transonic Fan Blade Cascade

Alexander Hergt, J. Klinner, W. Steinert, S. Grund, M. Beversdorff, A. Giebmanns, R. Schnell
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. February 2015, 137(2): 021006.
Paper No: TURBO-14-1112
https://doi.org/10.1115/1.4028215
Published Online: September 16, 2014
View Article titled, The Effect of an Eroded Leading Edge on the Aerodynamic Performance of a Transonic Fan Blade Cascade
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Topics: Blades, Cascades (Fluid dynamics), Shock (Mechanics), Suction
Journal Articles

Effects of Vortex Generator Application on the Performance of a Compressor Cascade

Alexander Hergt, Robert Meyer, Karl Engel
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. March 2013, 135(2): 021026.
Paper No: TURBO-11-1126
https://doi.org/10.1115/1.4006605
Published Online: November 8, 2012
View Article titled, Effects of Vortex Generator Application on the Performance of a Compressor Cascade
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Topics: Blades, Cascades (Fluid dynamics), Flow (Dynamics), Generators, Vortices, Pressure, Compressors
Proceedings Papers

A New Approach for Compressor Endwall Contouring

Alexander Hergt, Robert Meyer, Karsten Liesner, Eberhard Nicke
Proc. ASME. GT2011, Volume 7: Turbomachinery, Parts A, B, and C, 177-186, June 6–10, 2011
Publisher: American Society of Mechanical Engineers
Paper No: GT2011-45858
https://doi.org/10.1115/GT2011-45858
View Paper titled, A New Approach for Compressor Endwall Contouring
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Topics: Compressors, Cascades (Fluid dynamics), Boundary layers, Design, Flow (Dynamics), Cross-flow, Blades, Corners (Structural elements), Flow simulation, Mach number
Proceedings Papers

Effects of Vortex Generator Application on the Performance of a Compressor Cascade

Alexander Hergt, Robert Meyer, Karl Engel
Proc. ASME. GT2010, Volume 7: Turbomachinery, Parts A, B, and C, 223-235, June 14–18, 2010
Publisher: American Society of Mechanical Engineers
Paper No: GT2010-22464
https://doi.org/10.1115/GT2010-22464
View Paper titled, Effects of Vortex Generator Application on the Performance of a Compressor Cascade
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Topics: Cascades (Fluid dynamics), Compressors, Generators, Vortices, Design, Flow (Dynamics), Corners (Structural elements), Cross-flow, Pressure, Separation (Technology)
Journal Articles

Advanced Nonaxisymmetric Endwall Contouring for Axial Compressors by Generating an Aerodynamic Separator—Part II: Experimental and Numerical Cascade Investigation

Alexander Hergt, Christian Dorfner, Wolfgang Steinert, Eberhard Nicke, Heinz-Adolf Schreiber
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. April 2011, 133(2): 021027.
https://doi.org/10.1115/1.4001224
Published Online: October 27, 2010
View Article titled, Advanced Nonaxisymmetric Endwall Contouring for Axial Compressors by Generating an Aerodynamic Separator—Part II: Experimental and Numerical Cascade Investigation
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Topics: Cascades (Fluid dynamics), Flow (Dynamics), Blades, Compressors, Pressure
Journal Articles

Advanced Nonaxisymmetric Endwall Contouring for Axial Compressors by Generating an Aerodynamic Separator—Part I: Principal Cascade Design and Compressor Application

Christian Dorfner, Alexander Hergt, Eberhard Nicke, Reinhard Moenig
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. April 2011, 133(2): 021026.
https://doi.org/10.1115/1.4001223
Published Online: October 27, 2010
View Article titled, Advanced Nonaxisymmetric Endwall Contouring for Axial Compressors by Generating an Aerodynamic Separator—Part I: Principal Cascade Design and Compressor Application
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Topics: Blades, Cascades (Fluid dynamics), Compressors, Design, Flow (Dynamics), Vortices, Separation (Technology), Stators, Optimization, Rotors
Proceedings Papers

Advanced Non-Axisymmetric Endwall Contouring for Axial Compressors by Generating an Aerodynamic Separator—Part II: Experimental and Numerical Cascade Investigation

Alexander Hergt, Christian Dorfner, Wolfgang Steinert, Eberhard Nicke, Heinz-Adolf Schreiber
Proc. ASME. GT2009, Volume 7: Turbomachinery, Parts A and B, 121-131, June 8–12, 2009
Publisher: American Society of Mechanical Engineers
Paper No: GT2009-59384
https://doi.org/10.1115/GT2009-59384
View Paper titled, Advanced Non-Axisymmetric Endwall Contouring for Axial Compressors by Generating an Aerodynamic Separator—Part II: Experimental and Numerical Cascade Investigation
Open the PDF for Advanced Non-Axisymmetric Endwall Contouring for Axial Compressors by Generating an Aerodynamic Separator—Part II: Experimental and Numerical Cascade Investigation in another window
Topics: Cascades (Fluid dynamics), Compressors, Design, Flow (Dynamics), Blades, Boundary layers, Vortices, Computer simulation, Corners (Structural elements), Flow simulation
Proceedings Papers

Advanced Non-Axisymmetric Endwall Contouring for Axial Compressors by Generating an Aerodynamic Separator—Part I: Principal Cascade Design and Compressor Application

Christian Dorfner, Alexander Hergt, Eberhard Nicke, Reinhard Moenig
Proc. ASME. GT2009, Volume 7: Turbomachinery, Parts A and B, 113-120, June 8–12, 2009
Publisher: American Society of Mechanical Engineers
Paper No: GT2009-59383
https://doi.org/10.1115/GT2009-59383
View Paper titled, Advanced Non-Axisymmetric Endwall Contouring for Axial Compressors by Generating an Aerodynamic Separator—Part I: Principal Cascade Design and Compressor Application
Open the PDF for Advanced Non-Axisymmetric Endwall Contouring for Axial Compressors by Generating an Aerodynamic Separator—Part I: Principal Cascade Design and Compressor Application in another window
Topics: Cascades (Fluid dynamics), Compressors, Design, Flow (Dynamics), Optimization, Rotors, Blades, Chain, Corners (Structural elements), Design methodology