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Georg Geiser
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Journal Articles

Using Pseudotime Marching for the Solution of Harmonic Balance Problems

Christian Frey, Jan Backhaus, Graham Ashcroft, Georg Geiser, Benjamin Winhart, Heinrich Stüer
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. September 2025, 147(9): 091007.
Paper No: TURBO-24-1275
https://doi.org/10.1115/1.4067519
Published Online: February 13, 2025
View Article titled, Using Pseudotime Marching for the Solution of Harmonic Balance Problems
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Topics: Flow (Dynamics), Robustness, Turbochargers, Unsteady flow, Errors, Computation, Computational fluid dynamics, Linear systems, Simulation, Compressors
Proceedings Papers

On the Development of an Efficient Sliding Mesh Interface for the Harmonic Balance Method, Part II: Effects of Casing Treatments on the Aerodynamic Damping of a Compressor Blade

Maximilian Hartmann, Daniel Schlüß, Georg Geiser, Felix Schwarzenthal, Graham Ashcroft, Florian Herbst
Proc. ASME. GT2024, Volume 12C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V12CT32A033, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-127237
https://doi.org/10.1115/GT2024-127237
View Paper titled, On the Development of an Efficient Sliding Mesh Interface for the Harmonic Balance Method, Part II: Effects of Casing Treatments on the Aerodynamic Damping of a Compressor Blade
Open the PDF for On the Development of an Efficient Sliding Mesh Interface for the Harmonic Balance Method, Part II: Effects of Casing Treatments on the Aerodynamic Damping of a Compressor Blade in another window
Topics: Blades, Compressors, Damping, Flutter (Aerodynamics)
Proceedings Papers

On the Development of an Efficient Sliding Mesh Interface for the Harmonic Balance Method, Part I: Implementation and Verification

Georg Geiser, Felix Schwarzenthal, Graham Ashcroft, Maximilian Hartmann, Daniel Schlüß
Proc. ASME. GT2024, Volume 12C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V12CT32A021, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-125015
https://doi.org/10.1115/GT2024-125015
View Paper titled, On the Development of an Efficient Sliding Mesh Interface for the Harmonic Balance Method, Part I: Implementation and Verification
Open the PDF for On the Development of an Efficient Sliding Mesh Interface for the Harmonic Balance Method, Part I: Implementation and Verification in another window
Topics: Algorithms, Ansätze (Mathematics), Blades, Cavities, Compressors, Design, Ducts, Entropy, Excitation, Flow (Dynamics)
Proceedings Papers

Using Pseudotime Marching for the Solution of Harmonic Balance Problems

Christian Frey, Jan Backhaus, Graham Ashcroft, Georg Geiser, Benjamin Winhart, Heinrich Stüer
Proc. ASME. GT2024, Volume 12C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V12CT32A038, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-127820
https://doi.org/10.1115/GT2024-127820
View Paper titled, Using Pseudotime Marching for the Solution of Harmonic Balance Problems
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Topics: Aeroelasticity, Compressors, Computational fluid dynamics, Errors, Flow (Dynamics), Jacobian matrices, Linear systems, Oscillations, Robustness, Scalars
Journal Articles

On the Simulation and Spectral Analysis of Unsteady Turbulence and Transition Effects in a Multistage Low Pressure Turbine

Georg Geiser, Jens Wellner, Edmund Kügeler, Anton Weber, Anselm Moors
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. May 2019, 141(5): 051012.
Paper No: TURBO-18-1281
https://doi.org/10.1115/1.4041820
Published Online: January 25, 2019
View Article titled, On the Simulation and Spectral Analysis of Unsteady Turbulence and Transition Effects in a Multistage Low Pressure Turbine
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Topics: Blades, Flow (Dynamics), Flow separation, Pressure, Simulation, Turbines, Turbulence, Wheels, Fluctuations (Physics), Separation (Technology)
Proceedings Papers

On the Simulation of Unsteady Turbulence and Transition Effects in a Multistage Low Pressure Turbine: Part III — Comparison of Harmonic Balance and Full Wheel Simulation

Edmund Kügeler, Georg Geiser, Jens Wellner, Anton Weber, Anselm Moors
Proc. ASME. GT2018, Volume 2C: Turbomachinery, V02CT42A041, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-76749
https://doi.org/10.1115/GT2018-76749
View Paper titled, On the Simulation of Unsteady Turbulence and Transition Effects in a Multistage Low Pressure Turbine: Part III — Comparison of Harmonic Balance and Full Wheel Simulation
Open the PDF for On the Simulation of Unsteady Turbulence and Transition Effects in a Multistage Low Pressure Turbine: Part III — Comparison of Harmonic Balance and Full Wheel Simulation in another window
Topics: Pressure, Simulation, Turbine components, Turbulence, Wheels, Stators, Turbines, Blades, Flow (Dynamics), Separation (Technology)
Proceedings Papers

On the Simulation of Unsteady Turbulence and Transition Effects in a Multistage Low Pressure Turbine: Part II — Full-Wheel Simulation

Georg Geiser, Jens Wellner, Edmund Kügeler, Anton Weber, Anselm Moors
Proc. ASME. GT2018, Volume 2C: Turbomachinery, V02CT42A043, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-76764
https://doi.org/10.1115/GT2018-76764
View Paper titled, On the Simulation of Unsteady Turbulence and Transition Effects in a Multistage Low Pressure Turbine: Part II — Full-Wheel Simulation
Open the PDF for On the Simulation of Unsteady Turbulence and Transition Effects in a Multistage Low Pressure Turbine: Part II — Full-Wheel Simulation in another window
Topics: Pressure, Simulation, Turbine components, Turbulence, Wheels, Blades, Bubbles, Separation (Technology), Turbines, Clocks