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Proceedings Papers

Transition Model Extension for Roughness Effects

Dragan Kožulović, Nemo Juchmann, Alexander Führing, Christoph Bode

Proc. ASME. GT2022, Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V10CT32A042, June 13–17, 2022

Paper No: GT2022-83277

DOI: https://doi.org/10.1115/GT2022-83277

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Topics: Surface roughness, Turbulence, Airfoils, Boundary layer turbulence, Boundary layers, Boundary-value problems, Computational fluid dynamics, Computer software, Energy dissipation, Flow (Dynamics)

Proceedings Papers

Highly Resolved Large-Eddy Simulations of a Transonic Compressor Stage Midspan Section Part I: Effect of Inflow Disturbances

Christoph Bode, Pawel J. Przytarski, John Leggett, Richard D. Sandberg

Proc. ASME. GT2022, Volume 10D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Turbomachinery General Interest; Unsteady Flows in Turbomachinery, V10DT37A011, June 13–17, 2022

Paper No: GT2022-81673

DOI: https://doi.org/10.1115/GT2022-81673

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Topics: Compressors, Inflow, Large eddy simulation, Shock (Mechanics), Boundary layers, Rotors, Suction, Flow (Dynamics), Stators, Turbulence

Proceedings Papers

Highly Resolved Large-Eddy Simulations of a Transonic Compressor Stage Midspan Section - Part II: Effect of Rotor-Stator Gap

Pawel J. Przytarski, John Leggett, Richard Sandberg, Christoph Bode

Paper No: GT2022-82474

DOI: https://doi.org/10.1115/GT2022-82474

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Topics: Compressors, Large eddy simulation, Rotors, Stators, Flow (Dynamics), Blades, Engineering simulation, Simulation, Boundary layers, Design

Proceedings Papers

The Influence of Condensation on the Performance Map of a Fuel Cell Turbocharger Turbine

Tim Wittmann, Sebastian Lück, Tim Hertwig, Christoph Bode, Jens Friedrichs

Proc. ASME. GT2021, Volume 6: Ceramics and Ceramic Composites; Coal, Biomass, Hydrogen, and Alternative Fuels; Microturbines, Turbochargers, and Small Turbomachines, V006T19A001, June 7–11, 2021

Paper No: GT2021-58472

DOI: https://doi.org/10.1115/GT2021-58472

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Topics: Condensation, Fuel cells, Turbines, Turbochargers, Pressure, Drops, Inflow, Nucleation (Physics), Aerodynamics, Exhaust systems

Proceedings Papers

Influence of Roughness on the Transition Modeling in Compressor Flows

Vera Tolksdorf, Anubhav Gokhale, Daniel Kessler, Leroy Benjamin, Christoph Bode, Jens Friedrichs

Proc. ASME. GT2021, Volume 2C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V02CT34A039, June 7–11, 2021

Paper No: GT2021-60003

DOI: https://doi.org/10.1115/GT2021-60003

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Topics: Compressors, Flow (Dynamics), Modeling, Surface roughness, Engines, Turbulence, Boundary layers, Reynolds-averaged Navier–Stokes equations, Rotors, Airfoils

Journal Articles

The Feasibility of an Euler–Lagrange Approach for the Modeling of Wet Steam

Tim Wittmann, Christoph Bode, Jens Friedrichs

J. Eng. Gas Turbines Power. April 2021, 143(4): 041004.

Paper No: GTP-20-1713

DOI: https://doi.org/10.1115/1.4049859

Published Online: February 22, 2021

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Topics: Condensation, Drops, Flow (Dynamics), Modeling, Nozzles, Nucleation (Physics), Steam, Vapors

Proceedings Papers

Pseudo Bond Graph System Modelling of Electric Air Compressors With Energy Recovery for Fuel Cell Applications

Sebastian Lück, Jan Göing, Christoph Bode, Jens Friedrichs

Proc. ASME. GT2020, Volume 8: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Marine; Microturbines, Turbochargers, and Small Turbomachines, V008T20A015, September 21–25, 2020

Paper No: GT2020-15029

DOI: https://doi.org/10.1115/GT2020-15029

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Topics: Air compressors, Energy recovery, Fuel cell applications, Modeling, Simulation, Transients (Dynamics), Compressibility, Fluids, Inertia (Mechanics), Machinery

Proceedings Papers

Steady State Modeling of Unsteady Wake Induced Transition Effects in a Multistage Low Pressure Turbine

Alexander Führing, Dragan Kožulović, Christoph Bode, Matthias Franke

Proc. ASME. GT2020, Volume 2C: Turbomachinery, V02CT35A012, September 21–25, 2020

Paper No: GT2020-14558

DOI: https://doi.org/10.1115/GT2020-14558

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Topics: Modeling, Pressure, Steady state, Turbines, Wakes, Boundary layers, Computation, Reynolds number, Simulation, Aircraft engines

Proceedings Papers

The Feasibility of an Euler-Lagrange Approach for the Modelling of Wet Steam

Tim Wittmann, Christoph Bode, Jens Friedrichs

Proc. ASME. GT2020, Volume 2C: Turbomachinery, V02CT35A053, September 21–25, 2020

Paper No: GT2020-16199

DOI: https://doi.org/10.1115/GT2020-16199

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Topics: Modeling, Steam, Nucleation (Physics), Condensation, Flow (Dynamics), Nozzles, Drops, Turbines

Proceedings Papers

Performance Simulation of Roughness Induced Module Variations of a Jet Propulsion by Using Pseudo Bond Graph Theory

Jan Göing, Christoph Bode, Jens Friedrichs, Hendrik Seehausen, Florian Herbst, Joerg R. Seume

Proc. ASME. GT2020, Volume 1: Aircraft Engine; Fans and Blowers, V001T01A014, September 21–25, 2020

Paper No: GT2020-14456

DOI: https://doi.org/10.1115/GT2020-14456

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Topics: Jet propulsion, Simulation, Surface roughness, Transients (Dynamics), Computational fluid dynamics, Engines, Jet engines, Blades, Compressors, Differential equations

Proceedings Papers

Jet Propulsion Engine Modelling Using Pseudo Bond Graph Approach

Jan Göing, Andreas Kellersmann, Christoph Bode, Jens Friedrichs

Proc. ASME. GT2019, Volume 1: Aircraft Engine; Fans and Blowers; Marine; Honors and Awards, V001T01A007, June 17–21, 2019

Paper No: GT2019-90420

DOI: https://doi.org/10.1115/GT2019-90420

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Topics: Engines, Jet propulsion, Modeling, Transients (Dynamics), Computer software, Jet engines, Stress, Construction, Simulation, Steady state

Proceedings Papers

Accuracy Assessment of Steady and Unsteady Multistage High Pressure Compressor Simulations

Sebastian Lück, Stefan Kuntzagk, Guido Doebbener, Andreas Kellersmann, Christoph Bode, Jens Friedrichs

Proc. ASME. GT2019, Volume 2A: Turbomachinery, V02AT39A026, June 17–21, 2019

Paper No: GT2019-91310

DOI: https://doi.org/10.1115/GT2019-91310

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Topics: Compressors, High pressure (Physics), Simulation, Computational fluid dynamics, Steady state, Engines, Reynolds-averaged Navier–Stokes equations, Stators, Aircraft, Computer simulation

Proceedings Papers

The Effect of Turbulent Scales on Low-Pressure Turbine Aerodynamics: Part B — Scale Resolving Simulations

Felix Schwarzbach, Christoph Müller-Schindewolffs, Christoph Bode, Florian Herbst

Proc. ASME. GT2018, Volume 2B: Turbomachinery, V02BT41A005, June 11–15, 2018

Paper No: GT2018-75163

DOI: https://doi.org/10.1115/GT2018-75163

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Topics: Aerodynamics, Engineering simulation, Pressure, Simulation, Turbines, Turbulence, Boundary layers, Cascades (Fluid dynamics), Boundary-value problems, Eddies (Fluid dynamics)

Journal Articles

Surface Roughness Impact on Low-Pressure Turbine Performance Due to Operational Deterioration

Andreas Kellersmann, Sarah Weiler, Christoph Bode, Jens Friedrichs, Jörn Städing, Günter Ramm

J. Eng. Gas Turbines Power. June 2018, 140(6): 062601.

Paper No: GTP-17-1308

DOI: https://doi.org/10.1115/1.4038246

Published Online: January 17, 2018

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Topics: Pressure, Surface roughness, Turbines, Blades

Proceedings Papers

Surface Roughness Impact on Low-Pressure Turbine Performance due to Operational Deterioration

Andreas Kellersmann, Sarah Weiler, Christoph Bode, Jens Friedrichs, Jörn Städing, Günter Ramm

Proc. ASME. GT2017, Volume 2D: Turbomachinery, V02DT48A012, June 26–30, 2017

Paper No: GT2017-64180

DOI: https://doi.org/10.1115/GT2017-64180

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Topics: Pressure, Surface roughness, Turbines, Aerodynamics, Airfoils, Engines, Flow (Dynamics), Aircraft engines, Boundary layer turbulence, Computational fluid dynamics

Journal Articles

Potential of Future Thermoelectric Energy Recuperation for Aviation

Christoph Bode, Jens Friedrichs, Ragnar Somdalen, Jürgen Köhler, Kai-Daniel Büchter, Christoph Falter, Ulrich Kling, Pawel Ziolkowski, Knud Zabrocki, Eckhard Müller, Dragan Kožulović

J. Eng. Gas Turbines Power. October 2017, 139(10): 101201.

Paper No: GTP-17-1049

DOI: https://doi.org/10.1115/1.4036527

Published Online: May 9, 2017

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Topics: Aircraft, Aviation, Engines, Generators, Nozzles, Temperature, Flow (Dynamics), Design, Power density, Heat

Proceedings Papers

Potential of Future Thermoelectric Energy Recuperation for Aviation

Christoph Bode, Jens Friedrichs, Ragnar Somdalen, Jürgen Köhler, Kai-Daniel Büchter, Christoph Falter, Ulrich Kling, Pawel Ziolkowski, Knud Zabrocki, Eckhard Müller, Dragan Kožulović

Proc. ASME. IMECE2016, Volume 1: Advances in Aerospace Technology, V001T03A041, November 11–17, 2016

Paper No: IMECE2016-66650

DOI: https://doi.org/10.1115/IMECE2016-66650

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Topics: Aviation, Turbines, Aircraft, Engines, Flow (Dynamics), Generators, Heat transfer, High pressure (Physics), Nozzles, Pressure

Proceedings Papers

Particle Image Velocimetry Investigations of a Subsonic Compressor Tandem Cascade

Charlotte Hertel, Christoph Bode, Dragan Kožulović, Tim Schneider

Proc. ASME. GT2016, Volume 2A: Turbomachinery, V02AT37A044, June 13–17, 2016

Paper No: GT2016-57726

DOI: https://doi.org/10.1115/GT2016-57726

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Topics: Cascades (Fluid dynamics), Compressors, Particulate matter, Flow (Dynamics), Blades, Pressure measurement, Suction

Proceedings Papers

Effects of a Skewed Inlet Boundary Layer on the Aerodynamic Performance of a Stator-Hub Equivalent High-Turning Compressor Cascade

Christoph Bode, Jörg Hoffmann, Udo Stark

Proc. ASME. GT2016, Volume 2A: Turbomachinery, V02AT37A006, June 13–17, 2016

Paper No: GT2016-56087

DOI: https://doi.org/10.1115/GT2016-56087

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Topics: Boundary layers, Cascades (Fluid dynamics), Compressors, Stators, Turning, Flow (Dynamics), Geometry, Axial flow

Proceedings Papers

Analysis of Laminar-Turbulent Transition of a Low-Loss Generic Low Pressure Turbine Distribution

Christian Brück, Christoph Lyko, Dieter Peitsch, Christoph Bode, Jens Friedrichs, Dragan Kožulović, Andreas Fiala, Yavuz Guendogdu

Proc. ASME. GT2015, Volume 2A: Turbomachinery, V02AT38A019, June 15–19, 2015

Paper No: GT2015-42824

DOI: https://doi.org/10.1115/GT2015-42824

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Topics: Pressure, Turbines, Turbulence, Reynolds number, Blades, Engines, Geometry, Reynolds-averaged Navier–Stokes equations, Suction, Turbofans

Journal citation

NARROW

Transition Model Extension for Roughness Effects

Highly Resolved Large-Eddy Simulations of a Transonic Compressor Stage Midspan Section Part I: Effect of Inflow Disturbances

Highly Resolved Large-Eddy Simulations of a Transonic Compressor Stage Midspan Section - Part II: Effect of Rotor-Stator Gap

The Influence of Condensation on the Performance Map of a Fuel Cell Turbocharger Turbine

Influence of Roughness on the Transition Modeling in Compressor Flows

The Feasibility of an Euler–Lagrange Approach for the Modeling of Wet Steam

Pseudo Bond Graph System Modelling of Electric Air Compressors With Energy Recovery for Fuel Cell Applications

Steady State Modeling of Unsteady Wake Induced Transition Effects in a Multistage Low Pressure Turbine

The Feasibility of an Euler-Lagrange Approach for the Modelling of Wet Steam

Performance Simulation of Roughness Induced Module Variations of a Jet Propulsion by Using Pseudo Bond Graph Theory

Jet Propulsion Engine Modelling Using Pseudo Bond Graph Approach

Accuracy Assessment of Steady and Unsteady Multistage High Pressure Compressor Simulations

The Effect of Turbulent Scales on Low-Pressure Turbine Aerodynamics: Part B — Scale Resolving Simulations

Surface Roughness Impact on Low-Pressure Turbine Performance Due to Operational Deterioration

Surface Roughness Impact on Low-Pressure Turbine Performance due to Operational Deterioration

Potential of Future Thermoelectric Energy Recuperation for Aviation

Potential of Future Thermoelectric Energy Recuperation for Aviation

Particle Image Velocimetry Investigations of a Subsonic Compressor Tandem Cascade

Effects of a Skewed Inlet Boundary Layer on the Aerodynamic Performance of a Stator-Hub Equivalent High-Turning Compressor Cascade

Analysis of Laminar-Turbulent Transition of a Low-Loss Generic Low Pressure Turbine Distribution

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