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Proceedings Papers

Calculation of the Overspeed at Emergency Shutdown of a Transonic Test Turbine Facility Using a Web-Based Thermodynamic Simulation Tool

Wolfgang Sanz, Erhard Perz, Emil Göttlich
Proc. ASME. GT2024, Volume 5: Cycle Innovations, V005T06A018, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-126277
https://doi.org/10.1115/GT2024-126277
View Paper titled, Calculation of the Overspeed at Emergency Shutdown of a Transonic Test Turbine Facility Using a Web-Based Thermodynamic Simulation Tool
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Topics: Failure, Scram, Simulation, Turbines
Proceedings Papers

Design of a Relational Database for Turbine Center Frames With Application for Geometry Optimization

Marian Staggl, Wolfgang Sanz, Thomas Sterner
Proc. ASME. GT2024, Volume 12D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V12DT34A019, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-126557
https://doi.org/10.1115/GT2024-126557
View Paper titled, Design of a Relational Database for Turbine Center Frames With Application for Geometry Optimization
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Topics: Artificial intelligence, Databases, Design, Geometry, Optimization, Relational databases, Turbines
Proceedings Papers

Prediction of Flow Separations in Turbine Center Frames Using Support Vector Machines and Random Forests

Marian Staggl, Wolfgang Sanz, Peter Leitl, Maximilian Kurzthaler, Paul Pieringer
Proc. ASME. GT2023, Volume 13C: Turbomachinery — Deposition, Erosion, Fouling, and Icing; Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V13CT32A015, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101884
https://doi.org/10.1115/GT2023-101884
View Paper titled, Prediction of Flow Separations in Turbine Center Frames Using Support Vector Machines and Random Forests
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Topics: Flow separation, Support vector machines, Turbines, Aircraft engines, Algorithms, Computational fluid dynamics, Fuel consumption, Pressure, Trains
Journal Articles

Correlated Pressure–Velocity Instability in a Transonic High-Pressure Turbine Blade

Matteo Dellacasagrande, Davide Lengani, Ettore Bertolini, Wolfgang Sanz
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. April 2023, 145(4): 041015.
Paper No: TURBO-22-1281
https://doi.org/10.1115/1.4055971
Published Online: November 7, 2022
View Article titled, Correlated Pressure–Velocity Instability in a Transonic High-Pressure Turbine Blade
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Topics: Boundary layers, Pressure, Fluctuations (Physics), Blades, Flow (Dynamics), Large eddy simulation, Suction, Turbulence, Principal component analysis
Proceedings Papers

Correlated Pressure-Velocity Instability in a Transonic High-Pressure Turbine Blade

Matteo Dellacasagrande, Davide Lengani, Ettore Bertolini, Wolfgang Sanz
Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT30A020, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82205
https://doi.org/10.1115/GT2022-82205
View Paper titled, Correlated Pressure-Velocity Instability in a Transonic High-Pressure Turbine Blade
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Topics: High pressure (Physics), Pressure, Turbine blades, Boundary layers, Waves, Blades, Fluctuations (Physics), Suction, Large eddy simulation, Principal component analysis
Proceedings Papers

Large Eddy Simulation of a Transonic Linear Cascade With Synthetic Inlet Turbulence

Ettore Bertolini, Paul Pieringer, Wolfgang Sanz
Proc. ASME. GT2020, Volume 2C: Turbomachinery, V02CT35A007, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14461
https://doi.org/10.1115/GT2020-14461
View Paper titled, Large Eddy Simulation of a Transonic Linear Cascade With Synthetic Inlet Turbulence
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Topics: Cascades (Fluid dynamics), Large eddy simulation, Turbulence, Blades, Boundary layers, Engineering simulation, Flow (Dynamics), Heat transfer, Inflow, Reynolds-averaged Navier–Stokes equations
Proceedings Papers

Influence of Purge Temperature Variation on the Performance of Turbine Center Frames

Patrick Jagerhofer, Andreas Peters, Emil Göttlich, Wolfgang Sanz, Federica Farisco
Proc. ASME. GT2020, Volume 2C: Turbomachinery, V02CT35A008, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14502
https://doi.org/10.1115/GT2020-14502
View Paper titled, Influence of Purge Temperature Variation on the Performance of Turbine Center Frames
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Topics: Temperature, Turbines, Flow (Dynamics), Engines, Ducts, Computational fluid dynamics, Cooling, Pressure, Simulation, Turbine components
Proceedings Papers

Prediction of Separated Flow Transition Using LES and Transitional RANS Model

Ettore Bertolini, Paul Pieringer, Wolfgang Sanz
Proc. ASME. GT2019, Volume 2C: Turbomachinery, V02CT41A007, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-90214
https://doi.org/10.1115/GT2019-90214
View Paper titled, Prediction of Separated Flow Transition Using LES and Transitional RANS Model
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Topics: Flow (Dynamics), Reynolds-averaged Navier–Stokes equations, Boundary layers, Engineering simulation, Simulation, Blades, Separation (Technology), Bubbles, Cascades (Fluid dynamics), Suction
Proceedings Papers

Steady CFD Simulation of a High Pressure Turbine Rotor With Hub and Shroud Purge Flow

Wolfgang Sanz, Stefan Zerobin, Manfred Egger, Pascal Bader, Paul Pieringer, Emil Göttlich, Franz Heitmeir
Proc. ASME. GT2018, Volume 2B: Turbomachinery, V02BT41A010, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-75642
https://doi.org/10.1115/GT2018-75642
View Paper titled, Steady CFD Simulation of a High Pressure Turbine Rotor With Hub and Shroud Purge Flow
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Topics: Computational fluid dynamics, Flow (Dynamics), High pressure (Physics), Rotors, Simulation, Turbines, Vortices, Leakage, Vorticity, Boundary layers
Journal Articles

Experimental Investigation of Boundary Layer Relaminarization in Accelerated Flow

Pascal Bader, Manuel Pschernig, Wolfgang Sanz, Jakob Woisetschläger, Franz Heitmeir, Walter Meile, Günter Brenn
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. August 2018, 140(8): 081201.
Paper No: FE-17-1386
https://doi.org/10.1115/1.4039257
Published Online: March 29, 2018
View Article titled, Experimental Investigation of Boundary Layer Relaminarization in Accelerated Flow
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Topics: Boundary layers, Flow (Dynamics), Turbulence, Fluctuations (Physics), Skin friction (Fluid dynamics)
Proceedings Papers

On Boundary Layer Relaminarization in an Highly Accelerated High Pressure Turbine Stator Flow

Pascal Bader, Wolfgang Sanz
Proc. ASME. GT2017, Volume 2B: Turbomachinery, V02BT41A009, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-63296
https://doi.org/10.1115/GT2017-63296
View Paper titled, On Boundary Layer Relaminarization in an Highly Accelerated High Pressure Turbine Stator Flow
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Topics: Boundary layers, Flow (Dynamics), High pressure (Physics), Stators, Turbines, Turbulence, Blades, Friction, Machinery, Simulation
Proceedings Papers

Detecting Transition in Flat Plate Flow With Laser Interferometric Vibrometry (LIV)

Pascal Bader, Wolfgang Sanz, Johannes Peterleithner, Jakob Woisetschläger, Franz Heitmeir, Walter Meile, Günter Brenn
Proc. ASME. GT2016, Volume 2A: Turbomachinery, V02AT37A003, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-56043
https://doi.org/10.1115/GT2016-56043
View Paper titled, Detecting Transition in Flat Plate Flow With Laser Interferometric Vibrometry (LIV)
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Topics: Flat plates, Flow (Dynamics), Lasers, Turbulence, Boundary layers, Engineering simulation, Fluids, Heat transfer, Laminar flow, Probes
Proceedings Papers

Flat-Plate Boundary Layers in Accelerated Flow

Pascal Bader, Manuel Pschernig, Wolfgang Sanz, Jakob Woisetschläger, Franz Heitmeir, Walter Meile, Günter Brenn
Proc. ASME. GT2016, Volume 2B: Turbomachinery, V02BT38A003, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-56044
https://doi.org/10.1115/GT2016-56044
View Paper titled, Flat-Plate Boundary Layers in Accelerated Flow
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Topics: Boundary layers, Flat plates, Flow (Dynamics), Turbulence, Skin friction (Fluid dynamics), Geometry, Heat transfer, Lasers, Performance, Probes
Proceedings Papers

Adapting the Zero-Emission Graz Cycle for Hydrogen Combustion and Investigation of Its Part Load Behaviour

Wolfgang Sanz, Martin Braun, Herbert Jericha, Max F. Platzer
Proc. ASME. GT2016, Volume 3: Coal, Biomass and Alternative Fuels; Cycle Innovations; Electric Power; Industrial and Cogeneration; Organic Rankine Cycle Power Systems, V003T06A020, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-57988
https://doi.org/10.1115/GT2016-57988
View Paper titled, Adapting the Zero-Emission Graz Cycle for Hydrogen Combustion and Investigation of Its Part Load Behaviour
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Topics: Combustion, Cycles, Emissions, Hydrogen, Stress, Oxygen, Fluids, Fuels, Power stations, Electrolysis
Proceedings Papers

Measured Heat Transfer in a Transonic Fan Rig at Casing With Implications on Performance

Mark G. Turner, Ahmed Nemnem, Anthony J. Gannon, Garth V. Hobson, Wolfgang Sanz
Proc. ASME. GT2015, Volume 2A: Turbomachinery, V02AT37A039, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-43482
https://doi.org/10.1115/GT2015-43482
View Paper titled, Measured Heat Transfer in a Transonic Fan Rig at Casing With Implications on Performance
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Topics: Heat transfer, Rotors, Pressure, Temperature, Boundary-value problems, Compressors, Computational fluid dynamics, Exterior walls, Heat, Heat transfer coefficients
Proceedings Papers

Steady and Unsteady CFD Calculation of the Laminar-to-Turbulent Transition in a Turning Mid Turbine Frame With Embedded Design

Pascal Bader, Wolfgang Sanz
Proc. ASME. GT2015, Volume 2A: Turbomachinery, V02AT38A013, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-42617
https://doi.org/10.1115/GT2015-42617
View Paper titled, Steady and Unsteady CFD Calculation of the Laminar-to-Turbulent Transition in a Turning Mid Turbine Frame With Embedded Design
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Topics: Computational fluid dynamics, Design, Turbines, Turbulence, Turning, Ducts, Flow (Dynamics), Pressure, Rotors, Boundary layers
Proceedings Papers

Performance of a Splittered Transonic Rotor With Several Tip Clearances

Anthony J. Gannon, Garth V. Hobson, Mark G. Turner, Wolfgang Sanz
Proc. ASME. GT2015, Volume 2A: Turbomachinery, V02AT37A040, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-43799
https://doi.org/10.1115/GT2015-43799
View Paper titled, Performance of a Splittered Transonic Rotor With Several Tip Clearances
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Topics: Rotors, Pressure, Blades, Flow (Dynamics), Geometry, Cavities, Clearances (Engineering), Compressors, Fans, Gas turbines
Proceedings Papers

A Quasi-First Order Optimization Method and its Demonstration on the Optimization of a U-Bend

M. Bugra Akin, Wolfgang Sanz
Proc. ASME. GT2015, Volume 2B: Turbomachinery, V02BT39A020, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-42640
https://doi.org/10.1115/GT2015-42640
View Paper titled, A Quasi-First Order Optimization Method and its Demonstration on the Optimization of a U-Bend
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Topics: Optimization, Computational fluid dynamics, Finite difference methods, Engineering simulation, Shape optimization, Simulation
Proceedings Papers

On the Navier-Stokes Calculation of Separation Bubbles With a New Transition Model

Wolfgang Sanz, Max F. Platzer
Proc. ASME. GT1996, Volume 1: Turbomachinery, V001T01A122, June 10–13, 1996
Publisher: American Society of Mechanical Engineers
Paper No: 96-GT-487
https://doi.org/10.1115/96-GT-487
View Paper titled, On the Navier-Stokes Calculation of Separation Bubbles With a New Transition Model
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Topics: Bubbles, Separation (Technology), Airfoils, Blades, Boundary layers, Cascades (Fluid dynamics), Compressors, Turbomachinery, Turbulence
Proceedings Papers

Computation of Multi-Passage Cascade Flows With Overset and Deforming Grids

Ismail H. Tuncer, Wolfgang Sanz
Proc. ASME. GT1997, Volume 4: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award, V004T14A009, June 2–5, 1997
Publisher: American Society of Mechanical Engineers
Paper No: 97-GT-021
https://doi.org/10.1115/97-GT-021
View Paper titled, Computation of Multi-Passage Cascade Flows With Overset and Deforming Grids
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Topics: Cascades (Fluid dynamics), Computation, Flow (Dynamics), Algorithms, Blades, Compressors