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Nina Wolfrum
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Proceedings Papers

On the Formulation of Nonreflecting Boundary Conditions for Turbomachinery Configurations: Part I — Theory and Implementation

Christian Frey, Daniel Schlüß, Nina Wolfrum, Patrick Bechlars, Maximilian Beck
Proc. ASME. GT2020, Volume 2C: Turbomachinery, V02CT35A019, September 21–25, 2020
Paper No: GT2020-14684
DOI: https://doi.org/10.1115/GT2020-14684
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Topics: Boundary-value problems, Simulation, Turbomachinery, Unsteady flow
Proceedings Papers

On the Formulation of Nonreflecting Boundary Conditions for Turbomachinery Configurations: Part II — Application and Analysis

Nina Wolfrum, Patrick Bechlars, Maximilian Beck, Christian Frey, Daniel Schlüß
Proc. ASME. GT2020, Volume 2C: Turbomachinery, V02CT35A037, September 21–25, 2020
Paper No: GT2020-15358
DOI: https://doi.org/10.1115/GT2020-15358
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Topics: Boundary-value problems, Turbomachinery, Flow (Dynamics), Waves, Algorithms, Computational fluid dynamics, Acoustics, Blades, Computation, Design
Proceedings Papers

Comparison of Linear and Nonlinear Frequency Domain Methods for Flutter Analysis

Hans-Peter Kersken, Graham Ashcroft, Christian Frey, Nina Wolfrum, Oliver Pütz
Proc. ASME. GT2018, Volume 2C: Turbomachinery, V02CT42A016, June 11–15, 2018
Paper No: GT2018-75626
DOI: https://doi.org/10.1115/GT2018-75626
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Topics: Flutter (Aerodynamics), Blades, Turbomachinery, Algorithms, Gas turbines, Jet engines, Pressure, Stability, Turbines
Proceedings Papers

On the Simulation of Unsteady Turbulence and Transition Effects in a Multistage Low Pressure Turbine: Part I — Verification and Validation

Graham Ashcroft, Christian Frey, Hans-Peter Kersken, Edmund Kügeler, Nina Wolfrum
Proc. ASME. GT2018, Volume 2C: Turbomachinery, V02CT42A042, June 11–15, 2018
Paper No: GT2018-76756
DOI: https://doi.org/10.1115/GT2018-76756
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Topics: Pressure, Simulation, Turbine components, Turbulence, Boundary-value problems, Turbines, Airfoils, Computational fluid dynamics, Flow (Dynamics), Unsteady flow
Proceedings Papers

Nonreflecting Boundary Conditions for Aeroelastic Analysis in Time and Frequency Domain 3D RANS Solvers

Hans-Peter Kersken, Graham Ashcroft, Christian Frey, Nina Wolfrum, Detlef Korte
Proc. ASME. GT2014, Volume 2B: Turbomachinery, V02BT39A010, June 16–20, 2014
Paper No: GT2014-25499
DOI: https://doi.org/10.1115/GT2014-25499
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Topics: Boundary-value problems, Reynolds-averaged Navier–Stokes equations, Approximation, Flow (Dynamics), Computation, Eigenfunctions, Engineering simulation, Flutter (Aerodynamics), Fourier transforms, Navier-Stokes equations
Proceedings Papers

A Numerical Model for Casing Treatment Applications in Axial Flow Compressors

Nina Wolfrum, Giovanni Brignole, Karl Engel
Proc. ASME. GT2013, Volume 6A: Turbomachinery, V06AT35A008, June 3–7, 2013
Paper No: GT2013-94408
DOI: https://doi.org/10.1115/GT2013-94408
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Topics: Axial flow, Compressors, Computer simulation, Simulation, Flow (Dynamics), Computational fluid dynamics, Geometry, Navier-Stokes equations, Computation, Design
Proceedings Papers

CFD Simulations of the TP400 IPC With Enhanced Casing Treatment in Off-Design Operating Conditions

Karl Engel, Carsten Zscherp, Nina Wolfrum, Dirk Nu¨rnberger, Edmund Ku¨geler
Proc. ASME. GT2009, Volume 7: Turbomachinery, Parts A and B, 335-343, June 8–12, 2009
Paper No: GT2009-60324
DOI: https://doi.org/10.1115/GT2009-60324
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Topics: Computational fluid dynamics, Design, Simulation, Flow (Dynamics), Geometry, Resolution (Optics), Actuators, Chain, Compressors, Pressure