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Journal Articles

Flow Visualization of Wing Vortices of Delta Wings

Philipp Epple, Dustyn Kramer, Michael Steppert
Journal: Journal of Fluids Engineering
Article Type: Photo Gallery
J. Fluids Eng. June 2023, 145(6): 060904.
Paper No: FE-23-1073
DOI: https://doi.org/10.1115/1.4057070
Published Online: March 10, 2023
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Topics: Flow visualization, Vortices, Wings
Journal Articles

Sluice Gate Discharge From Momentum Balance

Michael Steppert, Philipp Epple, Andreas Malcherek
Journal: Journal of Fluids Engineering
Article Type: Research-Article
J. Fluids Eng. April 2022, 144(4): 041101.
Paper No: FE-21-1355
DOI: https://doi.org/10.1115/1.4053351
Published Online: February 8, 2022
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Topics: Computational fluid dynamics, Gates (Closures), Momentum, Pressure, Sluice gates, Parametrization, Discharge coefficient
Journal Articles

Flow Visualization of Protection Effectiveness of Partition Walls and Face Masks

Philipp Epple, Michael Steppert, Michael Florschuetz, Peter Dahlem
Journal: Journal of Fluids Engineering
Article Type: Photo Gallery
J. Fluids Eng. April 2022, 144(4): 040907.
Paper No: FE-21-1683
DOI: https://doi.org/10.1115/1.4053574
Published Online: January 29, 2022
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Topics: Flow visualization
Journal Articles

Effect of Winglets on Wing Tip Vortices

Philipp Epple, Michael Steppert, Michael Florschuetz
Journal: Journal of Fluids Engineering
Article Type: Photo Gallery
J. Fluids Eng. April 2022, 144(4): 040906.
Paper No: FE-21-1671
DOI: https://doi.org/10.1115/1.4053573
Published Online: January 29, 2022
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Topics: Wake turbulence, Wings
Proceedings Papers

Aerodynamic Performance Analysis of Winglets of Modern Sailplanes

Jens Kästner, Philipp Epple, Michael Steppert
Proc. ASME. IMECE2021, Volume 10: Fluids Engineering, V010T10A045, November 1–5, 2021
Paper No: IMECE2021-69672
DOI: https://doi.org/10.1115/IMECE2021-69672
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Topics: Computation, Computational fluid dynamics, Design, Inviscid flow, Wings
Proceedings Papers

Design of a Hydrokinetic Turbine for Energy Ships Applications With Combined Extended Analytical Betz-Schmidt Method and Numerical Simulations CFD

Philipp Epple, Jonas Holzbrecher, Michael Steppert, Max F. Platzer
Proc. ASME. IMECE2021, Volume 10: Fluids Engineering, V010T10A049, November 1–5, 2021
Paper No: IMECE2021-70051
DOI: https://doi.org/10.1115/IMECE2021-70051
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Topics: Computational fluid dynamics, Computer simulation, Design, Hydraulic turbines, Ships, Turbines, Design methodology, Airfoils, Torque, Water
Proceedings Papers

Wall Bounded Flows and a General Proof of the Validity of the Universal Logarithmic Law of the Wall

Philipp Epple, Michael Steppert, Andreas Malcherek
Proc. ASME. FEDSM2021, Volume 3: Fluid Mechanics; Micro and Nano Fluid Dynamics; Multiphase Flow, V003T05A003, August 10–12, 2021
Paper No: FEDSM2021-65733
DOI: https://doi.org/10.1115/FEDSM2021-65733
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Topics: Flow (Dynamics), Navier-Stokes equations, Turbulence, Boundary layers, Dimensional analysis, External pressure, Flat plates, Laminar flow, Students, Teaching
Proceedings Papers

Impact of Flow Characteristics on the Pressure Distribution on Sluice Gates

Michael Steppert, Philipp Epple, Andreas Malcherek
Proc. ASME. FEDSM2021, Volume 2: Fluid Applications and Systems; Fluid Measurement and Instrumentation, V002T03A006, August 10–12, 2021
Paper No: FEDSM2021-65396
DOI: https://doi.org/10.1115/FEDSM2021-65396
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Topics: Flow (Dynamics), Gates (Closures), Pressure, Sluice gates
Proceedings Papers

A New Method for Performance Measurement of PPV Fans for Fire Fighting Under Realistic Conditions

Michael Steppert, Philipp Epple, Michael Steber, Stefan Gast
Proc. ASME. IMECE2020, Volume 10: Fluids Engineering, V010T10A055, November 16–19, 2020
Paper No: IMECE2020-24381
DOI: https://doi.org/10.1115/IMECE2020-24381
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Topics: Fans, Fire, Nozzles, Flow (Dynamics), Smoke, Doors, Pressure, Combustion, Computational fluid dynamics, Design
Proceedings Papers

CFD Investigations on Drag Reduction due to Cavitator Heads on Supercavitating Bodies

Michael Steppert, Philipp Epple, Stefan Gast, Zoltan Von Mohos, Martin Wortmann
Proc. ASME. IMECE2020, Volume 10: Fluids Engineering, V010T10A056, November 16–19, 2020
Paper No: IMECE2020-24480
DOI: https://doi.org/10.1115/IMECE2020-24480
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Topics: Computational fluid dynamics, Drag reduction
Proceedings Papers

Parametrisation of the Pressure and the Momentum Integral for Inclined Sluicegates Flows

Michael Steppert, Philipp Epple, Andreas Malcherek
Proc. ASME. FEDSM2020, Volume 1: Fluid Applications and Systems; Fluid Measurement and Instrumentation, V001T01A019, July 13–15, 2020
Paper No: FEDSM2020-20253
DOI: https://doi.org/10.1115/FEDSM2020-20253
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Topics: Flow (Dynamics), Momentum, Pressure, Sluice gates, Discharge coefficient, Flux (Metallurgy), Polynomials, Water, Computational fluid dynamics, Energy conservation
Proceedings Papers

On How the Generation of Lift Can Be Explained in a Closed Form Based on the Fundamental Conservation Equations

Philipp Epple, Holger Babinsky, Michael Steppert, Manuel Fritsche
Proc. ASME. FEDSM2020, Volume 2: Fluid Mechanics; Multiphase Flows, V002T03A005, July 13–15, 2020
Paper No: FEDSM2020-20261
DOI: https://doi.org/10.1115/FEDSM2020-20261
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Topics: Aerodynamics, Airfoils, Flow (Dynamics), Fluid mechanics, Momentum, Newton's laws of motion, Suction, Venturi tubes
Proceedings Papers

Theoretical and Numerical Analysis of the Pressure Distribution and Discharge Velocity in Flows Under Inclined Sluice Gates

Philipp Epple, Michael Steppert, Andreas Malcherek, Manuel Fritsche
Proc. ASME. AJKFluids2019, Volume 5: Multiphase Flow, V005T05A056, July 28–August 1, 2019
Paper No: AJKFluids2019-5020
DOI: https://doi.org/10.1115/AJKFluids2019-5020
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Topics: Flow (Dynamics), Numerical analysis, Pressure, Sluice gates, Momentum, Discharge coefficient, Boundary layers, Computational fluid dynamics, Geometry, Potential theory (Physics)
Proceedings Papers

Development of a New Exhaust Air System for Combined Air Compressor and Dryer System

Michael Steppert, Philipp Epple, Michael Steber, Michael Florschuetz, Felix Schneider, Kevin Habrock, Erwin Ruppelt, Sebastian Eideloth, Anja Seitz
Proc. ASME. AJKFluids2019, Volume 3A: Fluid Applications and Systems, V03AT03A037, July 28–August 1, 2019
Paper No: AJKFluids2019-5106
DOI: https://doi.org/10.1115/AJKFluids2019-5106
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Topics: Air compressors, Exhaust systems, Ducts, Compressors, Refrigeration, Computational fluid dynamics, Fittings, Heat, Jet pumps, Nozzles
Proceedings Papers

New Design Method for Spiral Casings Considering the Properties of the Impeller and Spiral Casing at Design and Off-Design Conditions and Numerical Verification With CFD

Philipp Epple, Manuel Fritsche, Michael Steppert, Michael Steber
Proc. ASME. IMECE2018, Volume 7: Fluids Engineering, V007T09A083, November 9–15, 2018
Paper No: IMECE2018-88673
DOI: https://doi.org/10.1115/IMECE2018-88673
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Topics: Computational fluid dynamics, Design, Design methodology, Impellers, Flow (Dynamics), Fans, Conservation laws (Physics), Pressure
Proceedings Papers

Calculation of the Maximal Flight Altitude of the Historical HW2 Rocket Using CFD

Michael Steppert, Philipp Epple, Michael Steber
Proc. ASME. FEDSM2018, Volume 2: Development and Applications in Computational Fluid Dynamics; Industrial and Environmental Applications of Fluid Mechanics; Fluid Measurement and Instrumentation; Cavitation and Phase Change, V002T11A015, July 15–20, 2018
Paper No: FEDSM2018-83379
DOI: https://doi.org/10.1115/FEDSM2018-83379
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Topics: Computational fluid dynamics, Flight, Rockets, Rocket engines, Propulsion, Drag (Fluid dynamics), Simulation, Trajectories (Physics), Computation, Computer software
Proceedings Papers

Theoretical and Numerical Analysis of the Pressure Distribution and Discharge Velocity in Flows Under Sluice Gates

Philipp Epple, Michael Steppert, Michael Steber, Andreas Malcherek
Proc. ASME. FEDSM2018, Volume 2: Development and Applications in Computational Fluid Dynamics; Industrial and Environmental Applications of Fluid Mechanics; Fluid Measurement and Instrumentation; Cavitation and Phase Change, V002T11A009, July 15–20, 2018
Paper No: FEDSM2018-83277
DOI: https://doi.org/10.1115/FEDSM2018-83277
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Topics: Flow (Dynamics), Numerical analysis, Pressure, Sluice gates, Gates (Closures), Momentum, Inflow, Computation, Computational fluid dynamics, Hydraulics
Proceedings Papers

Numerical Investigation of the Drag of Rockets at Subsonic, Transonic and Supersonic Speeds

Michael Steppert, Philipp Epple
Proc. ASME. IMECE2017, Volume 7: Fluids Engineering, V007T09A074, November 3–9, 2017
Paper No: IMECE2017-71872
DOI: https://doi.org/10.1115/IMECE2017-71872
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Topics: Drag (Fluid dynamics), Rockets, Mach number, Pressure, Reynolds number, Waves, Friction, Shapes, Temperature, Trajectories (Physics)
Proceedings Papers

Analytical and Numerical Design of a High Performance Double–Throated Supersonic Blowdown Windtunnel

Philipp Epple, Michael Steppert, Michael Steber
Proc. ASME. IMECE2016, Volume 7: Fluids Engineering, V007T09A068, November 11–17, 2016
Paper No: IMECE2016-66085
DOI: https://doi.org/10.1115/IMECE2016-66085
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Topics: Design, Nozzles, Flow (Dynamics), Shapes, Wind tunnels, Computational fluid dynamics, Diffusers, Pressure, Shock (Mechanics), Computation