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Journal Articles

Turbomachine Design for Supercritical Carbon Dioxide Within the sCO2-HeRo.eu Project

Alexander Hacks, Sebastian Schuster, Hans Josef Dohmen, Friedrich-Karl Benra, Dieter Brillert
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2018, 140(12): 121017.
Paper No: GTP-18-1295
https://doi.org/10.1115/1.4040861
Published Online: November 29, 2018
View Article titled, Turbomachine Design for Supercritical Carbon Dioxide Within the sCO2-HeRo.eu Project
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Topics: Compressors, Design, Turbomachinery, Supercritical carbon dioxide, Generators, Impellers
Proceedings Papers

Damping Behavior of Acoustic Dominant Modes in an Aeroacoustic Test Rig Representing a Simplified Geometry of a High Pressure Radial Compressor

Botond Barabas, Dieter Brillert, Hans Josef Dohmen, Friedrich-Karl Benra
Proc. ASME. GT2018, Volume 7C: Structures and Dynamics, V07CT36A018, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-76629
https://doi.org/10.1115/GT2018-76629
View Paper titled, Damping Behavior of Acoustic Dominant Modes in an Aeroacoustic Test Rig Representing a Simplified Geometry of a High Pressure Radial Compressor
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Topics: Acoustics, Compressors, Damping, Geometry, High pressure (Physics), Pressure, Design, Excitation, Fluid pressure, Fluids
Proceedings Papers

Turbomachine Design for Supercritical Carbon Dioxide Within the sCO 2 -HeRo.EU Project

Alexander Hacks, Sebastian Schuster, Hans Josef Dohmen, Friedrich-Karl Benra, Dieter Brillert
Proc. ASME. GT2018, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T38A003, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-75154
https://doi.org/10.1115/GT2018-75154
View Paper titled, Turbomachine Design for Supercritical Carbon Dioxide Within the sCO 2 -HeRo.EU Project
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Topics: Design, Supercritical carbon dioxide, Turbomachinery, Compressors, Impellers, Bearings, Brayton cycle, Compressor impellers, Cooling, Cycles
Proceedings Papers

Coupled Thermal-Structural-Fluid Numerical Analysis of Gas Lubricated Mechanical Seals

Jingjing Luo, Hans Josef Dohmen, Friedrich-Karl Benra
Proc. ASME. GT2018, Volume 7B: Structures and Dynamics, V07BT34A014, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-75458
https://doi.org/10.1115/GT2018-75458
View Paper titled, Coupled Thermal-Structural-Fluid Numerical Analysis of Gas Lubricated Mechanical Seals
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Topics: Fluids, Numerical analysis, Pressure, Sealing (Process), Design, Deflection, Deformation, Film thickness, Flow (Dynamics), Gas compressors
Proceedings Papers

Investigation on the Influence of Surface Roughness on the Moment Coefficient in a Rotor-Stator Cavity With Centripetal Through-Flow

Bo Hu, Dieter Brillert, Hans Josef Dohmen, Friedrich-Karl Benra
Proc. ASME. FEDSM2017, Volume 1A, Symposia: Keynotes; Advances in Numerical Modeling for Turbomachinery Flow Optimization; Fluid Machinery; Industrial and Environmental Applications of Fluid Mechanics; Pumping Machinery, V01AT03A001, July 30–August 3, 2017
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2017-69018
https://doi.org/10.1115/FEDSM2017-69018
View Paper titled, Investigation on the Influence of Surface Roughness on the Moment Coefficient in a Rotor-Stator Cavity With Centripetal Through-Flow
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Topics: Cavities, Flow (Dynamics), Rotors, Stators, Surface roughness, Impellers, Pumps, Turbines, Design, Leakage flows
Proceedings Papers

PDA Measurements in Spray Generated by Twin-Jet-Nozzles

Inez von Deschwanden, Friedrich-Karl Benra, Hans Josef Dohmen, Dieter Brillert
Proc. ASME. FEDSM2017, Volume 1B, Symposia: Fluid Measurement and Instrumentation; Fluid Dynamics of Wind Energy; Renewable and Sustainable Energy Conversion; Energy and Process Engineering; Microfluidics and Nanofluidics; Development and Applications in Computational Fluid Dynamics; DNS/LES and Hybrid RANS/LES Methods, V01BT06A001, July 30–August 3, 2017
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2017-69003
https://doi.org/10.1115/FEDSM2017-69003
View Paper titled, PDA Measurements in Spray Generated by Twin-Jet-Nozzles
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Topics: Nozzles, Sprays, Drops, Lasers, Signals, Collisions (Physics), Data acquisition, Jets, Measurement systems, Optical measurement
Journal Articles

Investigation on Flow-Induced Vibrations of a Steam Turbine Inlet Valve Considering Fluid–Structure Interaction Effects

Clemens Bernhard Domnick, Friedrich-Karl Benra, Dieter Brillert, Hans Josef Dohmen, Christian Musch
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2017, 139(2): 022507.
Paper No: GTP-16-1260
https://doi.org/10.1115/1.4034352
Published Online: September 20, 2016
View Article titled, Investigation on Flow-Induced Vibrations of a Steam Turbine Inlet Valve Considering Fluid–Structure Interaction Effects
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Topics: Flow (Dynamics), Valves, Pressure, Vibration, Computational fluid dynamics
Proceedings Papers

Investigation on Flow Induced Vibrations of a Steam Turbine Inlet Valve Considering Fluid Structure Interaction Effects

Clemens Bernhard Domnick, Friedrich-Karl Benra, Dieter Brillert, Hans Josef Dohmen, Christian Musch
Proc. ASME. GT2016, Volume 8: Microturbines, Turbochargers and Small Turbomachines; Steam Turbines, V008T26A010, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-56314
https://doi.org/10.1115/GT2016-56314
View Paper titled, Investigation on Flow Induced Vibrations of a Steam Turbine Inlet Valve Considering Fluid Structure Interaction Effects
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Topics: Flow (Dynamics), Fluid structure interaction, Steam turbines, Valves, Vibration, Engineering simulation, Feedback, Fluctuations (Physics), Fluid dynamics, Pressure
Proceedings Papers

Comparison of Different Numerical Approaches for Determination of Compressible Fluid Flow in Narrow Gaps

Alexander Kefalas, Friedrich-Karl Benra, Dieter Brillert, Hans Josef Dohmen
Proc. ASME. GT2016, Volume 2C: Turbomachinery, V02CT39A051, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-57898
https://doi.org/10.1115/GT2016-57898
View Paper titled, Comparison of Different Numerical Approaches for Determination of Compressible Fluid Flow in Narrow Gaps
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Topics: Bearings, Compressible flow, Computational fluid dynamics, Computer software, Design, Engineering simulation, Flow (Dynamics), Fluid dynamics, Fluid films, Fluid mechanics
Proceedings Papers

Numerical Investigation on the Vibration of Steam Turbine Inlet Valves and the Feedback to the Dynamic Flow Field

Clemens Bernhard Domnick, Friedrich-Karl Benra, Dieter Brillert, Hans Josef Dohmen, Christian Musch
Proc. ASME. GT2015, Volume 8: Microturbines, Turbochargers and Small Turbomachines; Steam Turbines, V008T26A004, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-42182
https://doi.org/10.1115/GT2015-42182
View Paper titled, Numerical Investigation on the Vibration of Steam Turbine Inlet Valves and the Feedback to the Dynamic Flow Field
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Topics: Feedback, Flow (Dynamics), Steam turbines, Valves, Vibration, Structural dynamics, Computational fluid dynamics, Finite element model, Piston rings, Bushings
Journal Articles

Numerical Investigation on the Time-Variant Flow Field and Dynamic Forces Acting in Steam Turbine Inlet Valves

Clemens Bernhard Domnick, Friedrich-Karl Benra, Dieter Brillert, Hans Josef Dohmen, Christian Musch
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. August 2015, 137(8): 081601.
Paper No: GTP-14-1452
https://doi.org/10.1115/1.4029309
Published Online: August 1, 2015
View Article titled, Numerical Investigation on the Time-Variant Flow Field and Dynamic Forces Acting in Steam Turbine Inlet Valves
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Topics: Flow (Dynamics), Pressure, Valves, Diffusers, Acoustics, Fluctuations (Physics)
Proceedings Papers

Numerical Analysis of Compressible Fluid Flow in Narrow Gaps

Alexander Kefalas, Friedrich-Karl Benra, Hans Josef Dohmen
Proc. ASME. FEDSM2014, Volume 1B, Symposia: Fluid Machinery; Fluid-Structure Interaction and Flow-Induced Noise in Industrial Applications; Flow Applications in Aerospace; Flow Manipulation and Active Control: Theory, Experiments and Implementation; Multiscale Methods for Multiphase Flow; Noninvasive Measurements in Single and Multiphase Flows, V01BT10A044, August 3–7, 2014
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2014-22002
https://doi.org/10.1115/FEDSM2014-22002
View Paper titled, Numerical Analysis of Compressible Fluid Flow in Narrow Gaps
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Topics: Compressible flow, Computer simulation, Computer software, Design, Flow (Dynamics), Fluid dynamics, Fluid films, Fluid mechanics, Fluids, Numerical analysis
Proceedings Papers

Analyze of the Size of Secondary Droplets due to Film Separation at the Blade Trailing Edge

Hans Josef Dohmen, Friedrich-Karl Benra, Cornelius Schepers, Sebastian Schuster
Proc. ASME. FEDSM2014, Volume 1B, Symposia: Fluid Machinery; Fluid-Structure Interaction and Flow-Induced Noise in Industrial Applications; Flow Applications in Aerospace; Flow Manipulation and Active Control: Theory, Experiments and Implementation; Multiscale Methods for Multiphase Flow; Noninvasive Measurements in Single and Multiphase Flows, V01BT10A006, August 3–7, 2014
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2014-21128
https://doi.org/10.1115/FEDSM2014-21128
View Paper titled, Analyze of the Size of Secondary Droplets due to Film Separation at the Blade Trailing Edge
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Topics: Blades, Drops, Separation (Technology), Fluids, Lubrication theory, Compressors, Computational fluid dynamics, Film flow, Flow (Dynamics), Inlet guide vanes
Proceedings Papers

Numerical Investigation on the Time-Variant Flow Field and Dynamic Forces Acting in Steam Turbine Inlet Valves

Clemens Bernhard Domnick, Friedrich-Karl Benra, Hans Josef Dohmen, Christian Musch
Proc. ASME. GT2014, Volume 1B: Marine; Microturbines, Turbochargers and Small Turbomachines; Steam Turbines, V01BT27A019, June 16–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: GT2014-25632
https://doi.org/10.1115/GT2014-25632
View Paper titled, Numerical Investigation on the Time-Variant Flow Field and Dynamic Forces Acting in Steam Turbine Inlet Valves
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Topics: Flow (Dynamics), Steam turbines, Valves, Acoustics, Pressure, Unsteady flow, Computational fluid dynamics, Geometry, Power stations, Reynolds-averaged Navier–Stokes equations
Proceedings Papers

Sensitivity Analysis of Condensation Model Constants on Calculated Liquid Film Motion in Radial Turbines

Sebastian Schuster, Friedrich-Karl Benra, Hans Josef Dohmen, Sven König, Uwe Martens
Proc. ASME. GT2014, Volume 1B: Marine; Microturbines, Turbochargers and Small Turbomachines; Steam Turbines, V01BT27A021, June 16–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: GT2014-25652
https://doi.org/10.1115/GT2014-25652
View Paper titled, Sensitivity Analysis of Condensation Model Constants on Calculated Liquid Film Motion in Radial Turbines
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Topics: Condensation, Liquid films, Sensitivity analysis, Turbines, Drops, Rotors, Water, Blades, Clearances (Engineering), Flow (Dynamics)
Proceedings Papers

Improvement of Axial-Flow Pump Part Load Behavior by a Double Inlet Nozzle

Hans Josef Dohmen, Friedrich-Karl Benra, Sven Brinkhorst
Proc. ASME. FEDSM2012, Volume 1: Symposia, Parts A and B, 479-489, July 8–12, 2012
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2012-72211
https://doi.org/10.1115/FEDSM2012-72211
View Paper titled, Improvement of Axial-Flow Pump Part Load Behavior by a Double Inlet Nozzle
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Topics: Axial flow, Navier-Stokes equations, Nozzles, Pumps, Stress
Proceedings Papers

Numerical Simulation of a Micro Pelton Turbine Working in the Two-Phase Flow Regime

Sebastian Schuster, Friedrich-Karl Benra, Hans Josef Dohmen
Proc. ASME. FEDSM2012, Volume 1: Symposia, Parts A and B, 357-365, July 8–12, 2012
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2012-72039
https://doi.org/10.1115/FEDSM2012-72039
View Paper titled, Numerical Simulation of a Micro Pelton Turbine Working in the Two-Phase Flow Regime
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Topics: Computer simulation, Turbines, Two-phase flow
Journal Articles

Numerical Prediction of Unsteady Pressure Field Within the Whole Flow Passage of a Radial Single-Blade Pump

Ji Pei, Shouqi Yuan, Friedrich-Karl Benra, Hans Josef Dohmen
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Flows In Complex Systems
J. Fluids Eng. October 2012, 134(10): 101103.
https://doi.org/10.1115/1.4007382
Published Online: September 28, 2012
View Article titled, Numerical Prediction of Unsteady Pressure Field Within the Whole Flow Passage of a Radial Single-Blade Pump
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Topics: Blades, Fluctuations (Physics), Impellers, Pressure, Pumps, Flow (Dynamics)
Proceedings Papers

A Closed Loop Approach to Simulate the Unsteady Three-Dimensional Flow in an Axial Flow Pump

Friedrich-Karl Benra, Hans Josef Dohmen
Proc. ASME. FEDSM2010, ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting: Volume 1, Symposia – Parts A, B, and C, 631-645, August 1–5, 2010
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM-ICNMM2010-30484
https://doi.org/10.1115/FEDSM-ICNMM2010-30484
View Paper titled, A Closed Loop Approach to Simulate the Unsteady Three-Dimensional Flow in an Axial Flow Pump
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Topics: Axial flow, Flow (Dynamics), Pumps
Journal Articles

Investigation of Periodically Unsteady Flow in a Radial Pump by CFD Simulations and LDV Measurements

Jianjun Feng, Friedrich-Karl Benra, Hans Josef Dohmen
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. January 2011, 133(1): 011004.
https://doi.org/10.1115/1.4000486
Published Online: September 7, 2010
View Article titled, Investigation of Periodically Unsteady Flow in a Radial Pump by CFD Simulations and LDV Measurements
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Topics: Blades, Computational fluid dynamics, Diffusers, Flow (Dynamics), Impellers, Pumps, Simulation, Turbulence, Unsteady flow, Design