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Journal Articles

Loss Characterization of Advanced VIGV Configurations With Adjustable Blade Geometry

Roman G. Frank, Christian Wacker, Reinhard Niehuis

J. Turbomach. March 2022, 144(3): 031012.

Paper No: TURBO-21-1175

DOI: https://doi.org/10.1115/1.4052409

Published Online: November 2, 2021

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Topics: Blades, Flow (Dynamics)

Proceedings Papers

Loss Characterization of Advanced VIGV Configurations With Adjustable Blade Geometry

Roman G. Frank, Christian Wacker, Reinhard Niehuis

Proc. ASME. GT2021, Volume 2D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V02DT37A002, June 7–11, 2021

Paper No: GT2021-58548

DOI: https://doi.org/10.1115/GT2021-58548

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Topics: Blades, Geometry, Flow (Dynamics), Compressors, Cascades (Fluid dynamics), Chords (Trusses), Deflection, Flow separation, Impellers, Inlet guide vanes

Proceedings Papers

Numerical Investigation of Loss Development in a Low-Pressure Turbine Cascade With Unsteady Inflow and Varying Inlet Endwall Boundary Layer

Tobias Schubert, Reinhard Niehuis

Proc. ASME. GT2021, Volume 2B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing, V02BT32A010, June 7–11, 2021

Paper No: GT2021-59606

DOI: https://doi.org/10.1115/GT2021-59606

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Topics: Boundary layers, Cascades (Fluid dynamics), Inflow, Pressure, Turbines, Blades, Flow (Dynamics), Wakes, Engineering simulation, Engines

Proceedings Papers

Adaptive Geometry Representation of Turbine Vane Frames for Use in Optimization

Sebastian F. Riebl, Christian Wakelam, Reinhard Niehuis

Proc. ASME. GT2021, Volume 2C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V02CT34A006, June 7–11, 2021

Paper No: GT2021-58749

DOI: https://doi.org/10.1115/GT2021-58749

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Topics: Geometry, Optimization, Turbines, Blades, Design, Parametrization, Airfoils, Bearings, Computational fluid dynamics, Computer-aided design

Journal Articles

Accurate Boundary Layer Measurements Using Hot-Wire Anemometry—Improvements and Error Analysis

Silvio Chemnitz, Reinhard Niehuis

J. Energy Resour. Technol. January 2022, 144(1): 012110.

Paper No: JERT-20-2110

DOI: https://doi.org/10.1115/1.4051095

Published Online: May 27, 2021

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Topics: Boundary layers, Errors, Heat, Uncertainty, Wire, Probes, Sensors, Error analysis

Journal Articles

Steady and Unsteady Temperature Measurements in the Wake of a Linear Cascade With Heated Airfoils

Svenja Aberle-Kern, Thomas Ripplinger, Reinhard Niehuis

J. Turbomach. August 2021, 143(8): 081004.

Paper No: TURBO-20-1351

DOI: https://doi.org/10.1115/1.4050435

Published Online: April 26, 2021

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Topics: Blades, Cascades (Fluid dynamics), Flow (Dynamics), Pressure, Probes, Temperature, Vortices, Wakes, Wire, Heat transfer

Journal Articles

Dynamics of Shock Waves Interacting With Laminar Separated Transonic Turbine Flow Investigated by High-Speed Schlieren and Surface Hot-Film Sensors

Marcel Börner, Reinhard Niehuis

J. Turbomach. May 2021, 143(5): 051010.

Paper No: TURBO-20-1249

DOI: https://doi.org/10.1115/1.4050330

Published Online: April 13, 2021

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Topics: Boundary layers, Flow (Dynamics), Mach number, Sensors, Separation (Technology), Shock waves, Turbines, Suction, Cascades (Fluid dynamics), Bubbles

Journal Articles

On High-Resolution Pressure Amplitude and Phase Measurements Comparing Fast-Response Pressure Transducers and Unsteady Pressure-Sensitive Paint

Martin Bitter, Stephan Stotz, Reinhard Niehuis

J. Turbomach. March 2021, 143(3): 031012.

Paper No: TURBO-20-1254

DOI: https://doi.org/10.1115/1.4050118

Published Online: March 3, 2021

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Topics: Blades, Pressure, Pressure transducers, Wakes, Flow (Dynamics), Generators

Journal Articles

The Effects of Inlet Boundary Layer Condition and Periodically Incoming Wakes on Secondary Flow in a Low Pressure Turbine Cascade

Tobias Schubert, Silvio Chemnitz, Reinhard Niehuis

J. Turbomach. April 2021, 143(4): 041001.

Paper No: TURBO-20-1250

DOI: https://doi.org/10.1115/1.4050116

Published Online: March 2, 2021

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Topics: Blades, Boundary layers, Cascades (Fluid dynamics), Design, Flow (Dynamics), Inflow, Pressure, Turbines, Wakes, Flat plates

Proceedings Papers

Steady and Unsteady Temperature Measurements in the Wake of a Linear Cascade With Heated Airfoils

Svenja Aberle-Kern, Thomas Ripplinger, Reinhard Niehuis

Proc. ASME. GT2020, Volume 7C: Heat Transfer, V07CT13A004, September 21–25, 2020

Paper No: GT2020-14442

DOI: https://doi.org/10.1115/GT2020-14442

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Topics: Airfoils, Cascades (Fluid dynamics), Temperature measurement, Wakes, Temperature, Fluctuations (Physics), Heat transfer, Wire, Compressors, Probes

Proceedings Papers

On High-Resolution Pressure Amplitude and Phase Measurements Comparing Fast-Response Pressure Transducers and Unsteady Pressure-Sensitive Paint

Martin Bitter, Stephan Stotz, Reinhard Niehuis

Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET41A037, September 21–25, 2020

Paper No: GT2020-16194

DOI: https://doi.org/10.1115/GT2020-16194

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Topics: Paints, Pressure, Pressure transducers, Resolution (Optics), Cascades (Fluid dynamics), Flow (Dynamics), Wakes, Blades, Dynamics (Mechanics), Engines

Proceedings Papers

The Effects of Inlet Boundary Layer Condition and Periodically Incoming Wakes on Secondary Flow in a Low Pressure Turbine Cascade

Tobias Schubert, Silvio Chemnitz, Reinhard Niehuis

Proc. ASME. GT2020, Volume 2B: Turbomachinery, V02BT33A001, September 21–25, 2020

Paper No: GT2020-14242

DOI: https://doi.org/10.1115/GT2020-14242

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Topics: Boundary layers, Cascades (Fluid dynamics), Flow (Dynamics), Pressure, Turbines, Wakes, Design, Inflow, Blades, Flat plates

Proceedings Papers

Dynamics of Shock Waves Interacting With Laminar Separated Transonic Turbine Flow Investigated by High-Speed Schlieren and Surface Hot-Film Sensors

Marcel Börner, Reinhard Niehuis

Proc. ASME. GT2020, Volume 2B: Turbomachinery, V02BT33A005, September 21–25, 2020

Paper No: GT2020-14386

DOI: https://doi.org/10.1115/GT2020-14386

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Topics: Dynamics (Mechanics), Flow (Dynamics), Sensors, Shock waves, Turbines, Bubbles, Separation (Technology), Boundary layers, Mach number, Suction

Proceedings Papers

Investigation of the Loss Generation in a Turning Vane Frame at Different Inlet Turbulence Conditions

Sebastian F. Riebl, Christian Wakelam, Reinhard Niehuis

Proc. ASME. GT2020, Volume 2D: Turbomachinery, V02DT36A003, September 21–25, 2020

Paper No: GT2020-14166

DOI: https://doi.org/10.1115/GT2020-14166

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Topics: Turbulence, Turning vanes, Flow (Dynamics), Pressure, Turbines, Vortices, Blades, Boundary layers, Engineering simulation, Entropy

Journal Articles

A Comparison of Turbulence Levels From Particle Image Velocimetry and Constant Temperature Anemometry Downstream of a Low-Pressure Turbine Cascade at High-Speed Flow Conditions

Silvio Chemnitz, Reinhard Niehuis

J. Turbomach. July 2020, 142(7): 071008.

Paper No: TURBO-19-1251

DOI: https://doi.org/10.1115/1.4046272

Published Online: June 30, 2020

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Topics: Cascades (Fluid dynamics), Flow (Dynamics), Particulate matter, Pressure, Probes, Temperature, Turbines, Turbulence, Wakes, Wire

Proceedings Papers

A Comparison of Turbulence Levels From PIV and CTA Downstream of a Low-Pressure Turbine Cascade at High-Speed Flow Conditions

Silvio Chemnitz, Reinhard Niehuis

Proc. ASME. GT2019, Volume 2B: Turbomachinery, V02BT40A010, June 17–21, 2019

Paper No: GT2019-90473

DOI: https://doi.org/10.1115/GT2019-90473

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Topics: Cascades (Fluid dynamics), Flow (Dynamics), Pressure, Turbines, Turbulence, Probes, Density, Engines, Geometry, Numerical analysis

Journal Articles

Implementation of an In-Situ Infrared Calibration Method for Precise Heat Transfer Measurements on a Linear Cascade

Svenja Aberle, Martin Bitter, Florian Hoefler, Jorge Carretero Benignos, Reinhard Niehuis

J. Turbomach. February 2019, 141(2): 021004.

Paper No: TURBO-18-1034

DOI: https://doi.org/10.1115/1.4041132

Published Online: January 16, 2019

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Topics: Calibration, Cascades (Fluid dynamics), Temperature, Heat transfer coefficients, Heat transfer, Blades

Proceedings Papers

Interaction Phenomena of High Frequency Pulsed Blowing in LP Turbine-Like Boundary Layers at High Speed Test Conditions

Valentin Bettrich, Martin Bitter, Reinhard Niehuis

Proc. ASME. GT2018, Volume 2B: Turbomachinery, V02BT41A007, June 11–15, 2018

Paper No: GT2018-75475

DOI: https://doi.org/10.1115/GT2018-75475

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Topics: Boundary layers, Turbines, Flow (Dynamics), Actuators, Flow control, Pressure, Suction, Flat plates, Flow separation, Mach number

Proceedings Papers

Numerical Flow Field Analysis in a Highly Bent Intake Duct

Jakob P. Haug, Rudolf P. M. Rademakers, Marcel Stößel, Reinhard Niehuis

Proc. ASME. GT2018, Volume 2B: Turbomachinery, V02BT43A007, June 11–15, 2018

Paper No: GT2018-76633

DOI: https://doi.org/10.1115/GT2018-76633

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Topics: Ducts, Flow (Dynamics), Engines, Flow separation, Shapes, Vortices, Aerodynamics, Aircraft, Compressors, Computational fluid dynamics

Proceedings Papers

Detailed Analysis of Boundary Layer Control by Fluidic Oscillators on a Highly Loaded Profile

Julia Kurz, Reinhard Niehuis

Proc. ASME. GT2018, Volume 2B: Turbomachinery, V02BT41A019, June 11–15, 2018

Paper No: GT2018-76174

DOI: https://doi.org/10.1115/GT2018-76174

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Topics: Boundary layers, Flow control, Flow separation, Separation (Technology), Suction, Cascades (Fluid dynamics), Pressure, Pressure gradient, Reynolds number, Spectra (Spectroscopy)

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Journal citation

NARROW

Loss Characterization of Advanced VIGV Configurations With Adjustable Blade Geometry

Loss Characterization of Advanced VIGV Configurations With Adjustable Blade Geometry

Numerical Investigation of Loss Development in a Low-Pressure Turbine Cascade With Unsteady Inflow and Varying Inlet Endwall Boundary Layer

Adaptive Geometry Representation of Turbine Vane Frames for Use in Optimization

Accurate Boundary Layer Measurements Using Hot-Wire Anemometry—Improvements and Error Analysis

Steady and Unsteady Temperature Measurements in the Wake of a Linear Cascade With Heated Airfoils

Dynamics of Shock Waves Interacting With Laminar Separated Transonic Turbine Flow Investigated by High-Speed Schlieren and Surface Hot-Film Sensors

On High-Resolution Pressure Amplitude and Phase Measurements Comparing Fast-Response Pressure Transducers and Unsteady Pressure-Sensitive Paint

The Effects of Inlet Boundary Layer Condition and Periodically Incoming Wakes on Secondary Flow in a Low Pressure Turbine Cascade

Steady and Unsteady Temperature Measurements in the Wake of a Linear Cascade With Heated Airfoils

On High-Resolution Pressure Amplitude and Phase Measurements Comparing Fast-Response Pressure Transducers and Unsteady Pressure-Sensitive Paint

The Effects of Inlet Boundary Layer Condition and Periodically Incoming Wakes on Secondary Flow in a Low Pressure Turbine Cascade

Dynamics of Shock Waves Interacting With Laminar Separated Transonic Turbine Flow Investigated by High-Speed Schlieren and Surface Hot-Film Sensors

Investigation of the Loss Generation in a Turning Vane Frame at Different Inlet Turbulence Conditions

A Comparison of Turbulence Levels From Particle Image Velocimetry and Constant Temperature Anemometry Downstream of a Low-Pressure Turbine Cascade at High-Speed Flow Conditions

A Comparison of Turbulence Levels From PIV and CTA Downstream of a Low-Pressure Turbine Cascade at High-Speed Flow Conditions

Implementation of an In-Situ Infrared Calibration Method for Precise Heat Transfer Measurements on a Linear Cascade

Interaction Phenomena of High Frequency Pulsed Blowing in LP Turbine-Like Boundary Layers at High Speed Test Conditions

Numerical Flow Field Analysis in a Highly Bent Intake Duct

Detailed Analysis of Boundary Layer Control by Fluidic Oscillators on a Highly Loaded Profile

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