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Proc. ASME. GT2021, Volume 9A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Design and Engineering, V09AT23A015, June 7–11, 2021

Paper No: GT2021-59659

DOI: https://doi.org/10.1115/GT2021-59659

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Topics: Vibration, Blades, Compressors, Design, Fans, Locks (Waterways), Safety, Stability

Journal Articles

Interpretation of Stall Precursor Signatures

Christoph Brandstetter, Xavier Ottavy, Benoit Paoletti, Sina Stapelfeldt

J. Turbomach. December 2021, 143(12): 121011.

Paper No: TURBO-20-1275

DOI: https://doi.org/10.1115/1.4051709

Published Online: July 27, 2021

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Topics: Blades, Pressure, Signals, Spectra (Spectroscopy), Vibration, Rotors, Acoustics, Waves, Sensors, Compressors

Proceedings Papers

Investigating the Causes of Outlet Guide Vane Buffeting

Jonah R. Harris, Bharat Lad, Sina Stapelfeldt

Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT24A027, September 21–25, 2020

Paper No: GT2020-16063

DOI: https://doi.org/10.1115/GT2020-16063

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Topics: Guide vanes, Simulation, Engines, Excitation, Pressure, Aircraft engines, Architecture, Computational fluid dynamics, Design, Fatigue

Journal Articles

Deficiencies in the Spalart–Allmaras Turbulence Model for the Prediction of the Stability Boundary in Highly Loaded Compressors

Jose Moreno, John Dodds, Sina Stapelfeldt, Mehdi Vahdati

J. Turbomach. December 2020, 142(12): 121012.

Paper No: TURBO-19-1159

DOI: https://doi.org/10.1115/1.4047784

Published Online: December 2, 2020

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Topics: Boundary layers, Compressors, Eddies (Fluid dynamics), Flow (Dynamics), Modeling, Stability, Turbulence, Viscosity, Pressure

Proceedings Papers

Deficiencies in Turbulence Modelling for the Prediction of the Stability Boundary in Highly Loaded Compressors

Jose Moreno, John Dodds, Mehdi Vahdati, Sina Stapelfeldt

Proc. ASME. GT2019, Volume 2A: Turbomachinery, V02AT39A025, June 17–21, 2019

Paper No: GT2019-91227

DOI: https://doi.org/10.1115/GT2019-91227

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Topics: Compressors, Modeling, Stability, Turbulence, Boundary layers, Flow (Dynamics), Leakage flows, Resolution (Optics), Reynolds-averaged Navier–Stokes equations, Uncertainty

Journal Articles

Improving the Flutter Margin of an Unstable Fan Blade

Sina Stapelfeldt, Mehdi Vahdati

J. Turbomach. July 2019, 141(7): 071006.

Paper No: TURBO-18-1334

DOI: https://doi.org/10.1115/1.4042645

Published Online: February 22, 2019

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Topics: Blades, Flow (Dynamics), Flutter (Aerodynamics), Pressure, Stability

Proceedings Papers

Improving the Flutter Margin of an Unstable Fan Blade

Sina Stapelfeldt, Mehdi Vahdati

Proc. ASME. GT2018, Volume 7C: Structures and Dynamics, V07CT36A021, June 11–15, 2018

Paper No: GT2018-76889

DOI: https://doi.org/10.1115/GT2018-76889

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Topics: Blades, Flutter (Aerodynamics), Flow (Dynamics), Design, Acoustics, Aerodynamics, Aeroelasticity, Crude oil, Optimization, Pressure

Journal Articles

On the Importance of Engine-Representative Models for Fan Flutter Predictions

Sina Stapelfeldt, Mehdi Vahdati

J. Turbomach. August 2018, 140(8): 081005.

Paper No: TURBO-17-1209

DOI: https://doi.org/10.1115/1.4040110

Published Online: July 26, 2018

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Topics: Blades, Damping, Flutter (Aerodynamics), Computation, Flow (Dynamics), Stability, Temperature, Computational fluid dynamics

Proceedings Papers

On the Importance of Engine-Representative Models for Fan Flutter Predictions

Sina Stapelfeldt, Mehdi Vahdati

Proc. ASME. GT2017, Volume 7B: Structures and Dynamics, V07BT36A012, June 26–30, 2017

Paper No: GT2017-64167

DOI: https://doi.org/10.1115/GT2017-64167

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Topics: Engines, Flutter (Aerodynamics), Blades, Computational fluid dynamics, Acoustics, Computation, Manufacturing, Damping, Design, Fans

Proceedings Papers

Analysis of a Turbine Bladed Disk With Structural and Aerodynamic Mistuning

Dimitri Franz, Loic Salles, Sina Stapelfeldt

Proc. ASME. GT2017, Volume 7B: Structures and Dynamics, V07BT36A019, June 26–30, 2017

Paper No: GT2017-64586

DOI: https://doi.org/10.1115/GT2017-64586

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Topics: Aerodynamics, Algorithms, Annulus, Blades, Computation, Disks, Eigenvalues, Fluid-dynamic forces, Flutter (Aerodynamics), Manufacturing

Proceedings Papers

Near Stall Behavior of a Transonic Compressor Rotor With Casing Treatment

Christoph Brandstetter, Felix Holzinger, Heinz-Peter Schiffer, Sina Stapelfeldt, Mehdi Vahdati

Proc. ASME. GT2016, Volume 2D: Turbomachinery, V02DT44A013, June 13–17, 2016

Paper No: GT2016-56606

DOI: https://doi.org/10.1115/GT2016-56606

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Topics: Compressors, Rotors, Stall behavior, Blades, Cavities, Engines, Flow (Dynamics), Fluctuations (Physics), Stability, Vibration

Journal citation

NARROW

Unsteady Analysis of Aeroengine Intake Distortion Mechanisms: Vortex Dynamics in Crosswind Conditions

Unsteady Analysis of Aeroengine Intake Distortion Mechanisms: Vortex Dynamics in Crosswind Conditions

Suppression of Nonsynchronous Vibration Through Intentional Aerodynamic and Structural Mistuning

Suppression of Non-Synchronous-Vibration Through Intentional Aerodynamic and Structural Mistuning

Interpretation of Stall Precursor Signatures

Investigating the Causes of Outlet Guide Vane Buffeting

Deficiencies in the Spalart–Allmaras Turbulence Model for the Prediction of the Stability Boundary in Highly Loaded Compressors

Deficiencies in Turbulence Modelling for the Prediction of the Stability Boundary in Highly Loaded Compressors

Improving the Flutter Margin of an Unstable Fan Blade

Improving the Flutter Margin of an Unstable Fan Blade

On the Importance of Engine-Representative Models for Fan Flutter Predictions

On the Importance of Engine-Representative Models for Fan Flutter Predictions

Analysis of a Turbine Bladed Disk With Structural and Aerodynamic Mistuning

Near Stall Behavior of a Transonic Compressor Rotor With Casing Treatment

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