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Journal Articles

Impact of Blade Design on Static Pressure Recovery of Rotor-Only Low-Pressure Axial Fans

Accepted Manuscript
Hauke Witte, Christoph Bode
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng.
Paper No: FE-24-1571
https://doi.org/10.1115/1.4068027
Published Online: March 1, 2025
View Article titled, Impact of Blade Design on Static Pressure Recovery of Rotor-Only Low-Pressure Axial Fans
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Topics: Blades, Design, Fans, Pressure, Rotors, Vortices, Delay differential equations, Eddies (Fluid dynamics), Guide vanes, Momentum
Journal Articles

Advanced Methods for Assessing Flow Physics of the TU Darmstadt Compressor Stage: Uncertainty Quantification of RANS Turbulence Modeling

Marcel Matha, Felix M. Möller, Christoph Bode, Christian Morsbach, Edmund Kügeler
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. August 2025, 147(8): 081004.
Paper No: TURBO-24-1239
https://doi.org/10.1115/1.4067315
Published Online: January 13, 2025
View Article titled, Advanced Methods for Assessing Flow Physics of the TU Darmstadt Compressor Stage: Uncertainty Quantification of RANS Turbulence Modeling
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Topics: Compressors, Flow (Dynamics), Modeling, Reynolds stress, Reynolds-averaged Navier–Stokes equations, Simulation, Tensors, Turbulence, Uncertainty, Eigenvalues
Proceedings Papers

Impact of Blade Design on Static Pressure Recovery of Rotor-Only Low-Pressure Axial Fans

Hauke Witte, Christoph Bode
Proc. ASME. FEDSM2024, Volume 1: Fluid Applications and Systems (FASTC); Fluid Measurement and Instrumentation (FMITC); Fluid Mechanics (FMTC); Multiphase Flow (MFTC), V001T01A004, July 15–17, 2024
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2024-123826
https://doi.org/10.1115/FEDSM2024-123826
View Paper titled, Impact of Blade Design on Static Pressure Recovery of Rotor-Only Low-Pressure Axial Fans
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Topics: Blades, Design, Fans, Pressure, Rotors
Proceedings Papers

Advanced Methods for Assessing Flow Physics of the TU Darmstadt Compressor Stage: Part 2 – Uncertainty Quantification of RANS Turbulence Modeling

Marcel Matha, Felix M. Möller, Christoph Bode, Christian Morsbach, Edmund Kügeler
Proc. ASME. GT2024, Volume 12C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V12CT32A013, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-122495
https://doi.org/10.1115/GT2024-122495
View Paper titled, Advanced Methods for Assessing Flow Physics of the TU Darmstadt Compressor Stage: Part 2 – Uncertainty Quantification of RANS Turbulence Modeling
Open the PDF for Advanced Methods for Assessing Flow Physics of the TU Darmstadt Compressor Stage: Part 2 – Uncertainty Quantification of RANS Turbulence Modeling in another window
Topics: Compressors, Flow (Dynamics), Modeling, Physics, Reynolds-averaged Navier–Stokes equations, Turbulence, Uncertainty quantification
Proceedings Papers

Advanced Methods for Assessing Flow Physics of the TU Darmstadt Compressor Stage: Part 1 – Transitional Delayed Detached-Eddy Simulation

Felix M. Möller, Paul G. Tucker, Zhong-Nan Wang, Christoph Bode, Christian Morsbach, Marcel Matha, Pierre Sivel
Proc. ASME. GT2024, Volume 12C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V12CT32A037, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-127679
https://doi.org/10.1115/GT2024-127679
View Paper titled, Advanced Methods for Assessing Flow Physics of the TU Darmstadt Compressor Stage: Part 1 – Transitional Delayed Detached-Eddy Simulation
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Topics: Compressors, Detached eddy simulation, Flow (Dynamics), Physics, Reynolds-averaged Navier–Stokes equations, Turbulence
Proceedings Papers

Entropy Loss Breakdown Comparison for LES and RANS of a Transonic Compressor Stage Midspan Section

Till Borcherding, Christoph Bode, Marco Rosenzweig, Pawel J. Przytarski, John Leggett, Richard D. Sandberg
Proc. ASME. GT2023, Volume 13A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V13AT29A032, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102949
https://doi.org/10.1115/GT2023-102949
View Paper titled, Entropy Loss Breakdown Comparison for LES and RANS of a Transonic Compressor Stage Midspan Section
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Topics: Compressors, Entropy, Reynolds-averaged Navier–Stokes equations
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
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-83277
https://doi.org/10.1115/GT2022-83277
View Paper titled, Transition Model Extension for Roughness Effects
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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
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-81673
https://doi.org/10.1115/GT2022-81673
View Paper titled, Highly Resolved Large-Eddy Simulations of a Transonic Compressor Stage Midspan Section Part I: Effect of Inflow Disturbances
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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
Proc. ASME. GT2022, Volume 10D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Turbomachinery General Interest; Unsteady Flows in Turbomachinery, V10DT37A019, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82474
https://doi.org/10.1115/GT2022-82474
View Paper titled, Highly Resolved Large-Eddy Simulations of a Transonic Compressor Stage Midspan Section - Part II: Effect of Rotor-Stator Gap
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Topics: Compressors, Large eddy simulation, Rotors, Stators, Flow (Dynamics), Blades, Engineering simulation, Simulation, Boundary layers, Design
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
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-60003
https://doi.org/10.1115/GT2021-60003
View Paper titled, Influence of Roughness on the Transition Modeling in Compressor Flows
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Topics: Compressors, Flow (Dynamics), Modeling, Surface roughness, Engines, Turbulence, Boundary layers, Reynolds-averaged Navier–Stokes equations, Rotors, Airfoils
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
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-58472
https://doi.org/10.1115/GT2021-58472
View Paper titled, The Influence of Condensation on the Performance Map of a Fuel Cell Turbocharger Turbine
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Topics: Condensation, Fuel cells, Turbines, Turbochargers, Pressure, Drops, Inflow, Nucleation (Physics), Aerodynamics, Exhaust systems
Journal Articles

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

Tim Wittmann, Christoph Bode, Jens Friedrichs
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2021, 143(4): 041004.
Paper No: GTP-20-1713
https://doi.org/10.1115/1.4049859
Published Online: February 22, 2021
View Article titled, The Feasibility of an Euler–Lagrange Approach for the Modeling of Wet Steam
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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
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15029
https://doi.org/10.1115/GT2020-15029
View Paper titled, Pseudo Bond Graph System Modelling of Electric Air Compressors With Energy Recovery for Fuel Cell Applications
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Topics: Air compressors, Energy recovery, Fuel cell applications, Modeling, Simulation, Transients (Dynamics), Compressibility, Fluids, Inertia (Mechanics), Machinery
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
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14456
https://doi.org/10.1115/GT2020-14456
View Paper titled, Performance Simulation of Roughness Induced Module Variations of a Jet Propulsion by Using Pseudo Bond Graph Theory
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Topics: Jet propulsion, Simulation, Surface roughness, Transients (Dynamics), Computational fluid dynamics, Engines, Jet engines, Blades, Compressors, Differential equations
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
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14558
https://doi.org/10.1115/GT2020-14558
View Paper titled, Steady State Modeling of Unsteady Wake Induced Transition Effects in a Multistage Low Pressure Turbine
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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
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-16199
https://doi.org/10.1115/GT2020-16199
View Paper titled, The Feasibility of an Euler-Lagrange Approach for the Modelling of Wet Steam
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Topics: Modeling, Steam, Nucleation (Physics), Condensation, Flow (Dynamics), Nozzles, Drops, Turbines
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
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-90420
https://doi.org/10.1115/GT2019-90420
View Paper titled, Jet Propulsion Engine Modelling Using Pseudo Bond Graph Approach
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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
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-91310
https://doi.org/10.1115/GT2019-91310
View Paper titled, Accuracy Assessment of Steady and Unsteady Multistage High Pressure Compressor Simulations
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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
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-75163
https://doi.org/10.1115/GT2018-75163
View Paper titled, The Effect of Turbulent Scales on Low-Pressure Turbine Aerodynamics: Part B — Scale Resolving Simulations
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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
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2018, 140(6): 062601.
Paper No: GTP-17-1308
https://doi.org/10.1115/1.4038246
Published Online: January 17, 2018
View Article titled, Surface Roughness Impact on Low-Pressure Turbine Performance Due to Operational Deterioration
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Topics: Pressure, Surface roughness, Turbines, Blades