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Proceedings Papers

The Development of Turbulence Quantities in Different Intermediate Turbine Duct Configurations

Asim Hafizovic, Nicolas Krajnc, Filippo Merli, Marian Staggl, Francesco Mangini, Patrick Zeno Sterzinger, Andreas Marn, Emil Göttlich
Proc. ASME. GT2024, Volume 12D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V12DT36A011, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-126475
https://doi.org/10.1115/GT2024-126475
View Paper titled, The Development of Turbulence Quantities in Different Intermediate Turbine Duct Configurations
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Topics: Anisotropy, Ducts, Energy dissipation, Turbines, Turbulence, Wire
Proceedings Papers

Redistribution of Purged Cavity Air Inside a Turbine Exit Vane Frame due to the Interaction With the Main Airflow

Malte Schien, Pablo Lopez, Lukas Bratusek, Franz Heitmeir, Andreas Marn
Proc. ASME. GT2024, Volume 12C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V12CT33A011, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-126664
https://doi.org/10.1115/GT2024-126664
View Paper titled, Redistribution of Purged Cavity Air Inside a Turbine Exit Vane Frame due to the Interaction With the Main Airflow
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Topics: Air flow, Cavities, Turbines
Proceedings Papers

On the Effect of Purge Air on the Aerodynamic Performance of a State-of-the-Art Turbine-Rear-Frame Guide Vane

Malte Schien, Christian Wakelam, Mattia Graiff, Emil Göttlich, Andreas Marn
Proc. ASME. GT2023, Volume 13C: Turbomachinery — Deposition, Erosion, Fouling, and Icing; Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V13CT33A003, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101915
https://doi.org/10.1115/GT2023-101915
View Paper titled, On the Effect of Purge Air on the Aerodynamic Performance of a State-of-the-Art Turbine-Rear-Frame Guide Vane
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Topics: Cavities, Guide vanes, Turbines, Turbomachinery, Fluids, Temperature, Flow (Dynamics), Pressure, Thermal efficiency, Aerodynamics
Proceedings Papers

The Influence of Different Total Pressure Profile Inlet Distributions on the Performance of a Turbine Vane Frame With Splitter Vanes

Simon Pramstrahler, Christian Klemm, Andreas Peters, Marios Patinios, Mikel Lucas García De Albéniz, Franz Heitmeir, Andreas Marn
Proc. ASME. GT2023, Volume 13C: Turbomachinery — Deposition, Erosion, Fouling, and Icing; Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V13CT33A012, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103667
https://doi.org/10.1115/GT2023-103667
View Paper titled, The Influence of Different Total Pressure Profile Inlet Distributions on the Performance of a Turbine Vane Frame With Splitter Vanes
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Topics: Computational fluid dynamics, Design, Flow (Dynamics), Pressure, Turbines
Proceedings Papers

The Impact of Inlet Flow Angle on Turbine Vane Frame Aerodynamic Performance

Simon Pramstrahler, Andreas Peters, Mikel Lucas García De Albéniz, Peter Adrian Leitl, Franz Heitmeir, Andreas Marn
Proc. ASME. GT2022, Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V10CT33A001, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-78065
https://doi.org/10.1115/GT2022-78065
View Paper titled, The Impact of Inlet Flow Angle on Turbine Vane Frame Aerodynamic Performance
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Topics: Design, Flow (Dynamics), Pressure, Turbines
Proceedings Papers

Noise Attenuation Potential Using Helmholtz Absorbers Integrated in Low Pressure Turbine Exit Guide Vanes and Turbine Exit Casing End Walls

Manuel Zenz, Loris Simonassi, Philipp Bruckner, Simon Pramstrahler, Franz Heitmeir, Andreas Marn
Proc. ASME. GT2020, Volume 2D: Turbomachinery, V02DT36A007, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14233
https://doi.org/10.1115/GT2020-14233
View Paper titled, Noise Attenuation Potential Using Helmholtz Absorbers Integrated in Low Pressure Turbine Exit Guide Vanes and Turbine Exit Casing End Walls
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Topics: Acoustics, Guide vanes, Noise (Sound), Pressure, Turbines
Journal Articles

On the Influence of an Acoustically Optimized Turbine Exit Casing Onto the Unsteady Flow Field Downstream of a Low Pressure Turbine Rotor

Loris Simonassi, Manuel Zenz, Stefan Zerobin, Thorsten Selic, Franz Heitmeir, Andreas Marn
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. April 2019, 141(4): 041003.
Paper No: TURBO-18-1210
https://doi.org/10.1115/1.4041540
Published Online: January 21, 2019
View Article titled, On the Influence of an Acoustically Optimized Turbine Exit Casing Onto the Unsteady Flow Field Downstream of a Low Pressure Turbine Rotor
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Topics: Pressure, Rotors, Thermoelectric coolers, Turbines, Flow (Dynamics), Stators
Proceedings Papers

On the Effect of Axial Spacing Between Rotor and Stator Onto the Blade Vibrations of a Low Pressure Turbine Stage at Engine Relevant Operating Conditions

Andreas Marn, Florian Schönleitner, Mathias Mayr, Thorsten Selic, Franz Heitmeir
Proc. ASME. GT2016, Volume 7B: Structures and Dynamics, V07BT34A002, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-56069
https://doi.org/10.1115/GT2016-56069
View Paper titled, On the Effect of Axial Spacing Between Rotor and Stator Onto the Blade Vibrations of a Low Pressure Turbine Stage at Engine Relevant Operating Conditions
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Topics: Blades, Engines, Pressure, Rotors, Stators, Turbines, Vibration, Excitation, Weight (Mass), Flow (Dynamics)
Proceedings Papers

Introduction of a Project-Based-Course in Turbine Stage Design for Undergraduate Students at Graz University of Technology

Andreas Marn, Florian Schönleitner, Johannes Peterleithner, Jakob Woisetschläger, Franz Heitmeir
Proc. ASME. GT2016, Volume 6: Ceramics; Controls, Diagnostics and Instrumentation; Education; Manufacturing Materials and Metallurgy, V006T07A001, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-56071
https://doi.org/10.1115/GT2016-56071
View Paper titled, Introduction of a Project-Based-Course in Turbine Stage Design for Undergraduate Students at Graz University of Technology
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Topics: Design, Turbines, Undergraduate students, Students, Blades, Finite element analysis, Fluid structure interaction, Pressure, Rotors, Annulus
Proceedings Papers

Impact of Passive Tip-Injection on Tip-Leakage Flow in Axial Low Pressure Turbine Stage

Pouya Ghaffari, Reinhard Willinger, Sabine Bauinger, Andreas Marn
Proc. ASME. GT2015, Volume 2A: Turbomachinery, V02AT38A002, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-42226
https://doi.org/10.1115/GT2015-42226
View Paper titled, Impact of Passive Tip-Injection on Tip-Leakage Flow in Axial Low Pressure Turbine Stage
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Topics: Flow (Dynamics), Leakage, Pressure, Turbines, Blades, Computational fluid dynamics, Boundary-value problems, Compressible flow, Computer simulation, Machinery
Proceedings Papers

Interferometric Investigation of the Thermoacoustics in a Swirl Stabilized Methane Flame

Johannes Peterleithner, Andreas Marn, Jakob Woisetschläger
Proc. ASME. GT2015, Volume 4A: Combustion, Fuels and Emissions, V04AT04A058, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-42743
https://doi.org/10.1115/GT2015-42743
View Paper titled, Interferometric Investigation of the Thermoacoustics in a Swirl Stabilized Methane Flame
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Topics: Flames, Methane, Thermoacoustics, Chemiluminescence, Combustion chambers, Particulate matter, Resonance, Aerodynamics, Cavities, Computational fluid dynamics
Journal Articles

Comparison of the Aerodynamics of Acoustically Designed Exit Guide Vanes and a State-of-the-Art Exit Guide Vane

Andreas Marn, Dominik Broszat, Thorsten Selic, Florian Schönleitner, Franz Heitmeir
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. April 2015, 137(4): 041002.
Paper No: TURBO-14-1135
https://doi.org/10.1115/1.4028457
Published Online: October 28, 2014
View Article titled, Comparison of the Aerodynamics of Acoustically Designed Exit Guide Vanes and a State-of-the-Art Exit Guide Vane
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Topics: Acoustics, Thermoelectric coolers, Pressure, Flow (Dynamics), Turbines
Proceedings Papers

Comparison of the Aerodynamics of Acoustically Designed EGVs and a State-of-the-Art EGV

Andreas Marn, Thorsten Selic, Florian Schönleitner, Franz Heitmeir, Dominik Broszat
Proc. ASME. GT2014, Volume 2A: Turbomachinery, V02AT41A005, June 16–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: GT2014-26090
https://doi.org/10.1115/GT2014-26090
View Paper titled, Comparison of the Aerodynamics of Acoustically Designed EGVs and a State-of-the-Art EGV
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Topics: Acoustics, Aerodynamics, Thermoelectric coolers, Engines, Turbines, Weight (Mass), Aircraft engines, Blades, Design, Guide vanes
Proceedings Papers

Comparison of a State of the Art and a High Stage Loading Rotor

Thorsten Selic, Davide Lengani, Florian Schönleitner, Andreas Marn, Dominik Broszat
Proc. ASME. GT2014, Volume 2C: Turbomachinery, V02CT38A052, June 16–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: GT2014-26895
https://doi.org/10.1115/GT2014-26895
View Paper titled, Comparison of a State of the Art and a High Stage Loading Rotor
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Topics: Rotors, Blades, Pressure, Wakes, Aircraft engines, Flow (Dynamics), Fluctuations (Physics), Airfoils, Geometry, Leakage
Proceedings Papers

Analysis of the Unsteady Flow Field in Turbines by Means of Modal Decomposition

Davide Lengani, Thorsten Selic, Rosario Spataro, Andreas Marn, Emil Göttlich
Proc. ASME. GT2012, Volume 8: Turbomachinery, Parts A, B, and C, 2533-2543, June 11–15, 2012
Publisher: American Society of Mechanical Engineers
Paper No: GT2012-68582
https://doi.org/10.1115/GT2012-68582
View Paper titled, Analysis of the Unsteady Flow Field in Turbines by Means of Modal Decomposition
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Topics: Turbines, Unsteady flow, Flow (Dynamics), Blades, Pressure, Rotors, Computational fluid dynamics, Engineering simulation, Oscillations, Probes
Proceedings Papers

Aerodynamic Effects of an Unshrouded Low Pressure Turbine on a Low Aspect Ratio Exit Guide Vane

Thorsten Selic, Davide Lengani, Andreas Marn, Franz Heitmeir
Proc. ASME. GT2012, Volume 8: Turbomachinery, Parts A, B, and C, 1275-1286, June 11–15, 2012
Publisher: American Society of Mechanical Engineers
Paper No: GT2012-68981
https://doi.org/10.1115/GT2012-68981
View Paper titled, Aerodynamic Effects of an Unshrouded Low Pressure Turbine on a Low Aspect Ratio Exit Guide Vane
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Topics: Guide vanes, Pressure, Turbines, Flow (Dynamics), Aircraft engines, Leakage flows, Clearances (Engineering), Computational fluid dynamics, Flow visualization, Leakage
Journal Articles

Identification of Spinning Mode in the Unsteady Flow Field of a Low Pressure Turbine

Davide Lengani, Berardo Paradiso, Andreas Marn, Emil Göttlich
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. September 2012, 134(5): 051032.
https://doi.org/10.1115/1.4004875
Published Online: May 31, 2012
View Article titled, Identification of Spinning Mode in the Unsteady Flow Field of a Low Pressure Turbine
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Topics: Blades, Flow (Dynamics), Pressure, Rotors, Spin (Aerodynamics), Spinning (Textile), Stators, Turbines, Wakes, Probes
Proceedings Papers

Identification of Spinning Mode in the Unsteady Flow Field of a LP Turbine

Davide Lengani, Berardo Paradiso, Andreas Marn, Emil Go¨ttlich
Proc. ASME. GT2011, Volume 7: Turbomachinery, Parts A, B, and C, 1715-1724, June 6–10, 2011
Publisher: American Society of Mechanical Engineers
Paper No: GT2011-46226
https://doi.org/10.1115/GT2011-46226
View Paper titled, Identification of Spinning Mode in the Unsteady Flow Field of a LP Turbine
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Topics: Spin (Aerodynamics), Spinning (Textile), Turbines, Unsteady flow, Blades, Rotors, Flow (Dynamics), Probes, Wakes, Aircraft engines