Search Results - "Radespiel, Rolf"

A method to quantify the supersonic discharge of airbag cold gas inflators by Schnorr, Eduard, Scholz, Peter, Radespiel, Rolf

“…We discuss a method to quantify the supersonic discharge of airbag cold gas inflators. Since one primary quantity of interest, the mass flow with time, is not…”
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Drag Reduction by Laminar Flow Control by Beck, Nils, Landa, Tim, Seitz, Arne, Boermans, Loek, Liu, Yaolong, Radespiel, Rolf

“…The Energy System Transition in Aviation research project of the Aeronautics Research Center Niedersachsen (NFL) searches for potentially game-changing…”
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Assessment of Future Airframe and Propulsion Technologies on Sustainability of Next-Generation Mid-Range Aircraft by Karpuk, Stanislav, Radespiel, Rolf, Elham, Ali

“…The present work demonstrates the impact of future airframe and propulsion technologies on the sustainability of potential future medium-range commercial jets…”
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Grey area in embedded wall-modelled LES on a transonic nacelle-aircraft configuration by Herr, Marius, Probst, Axel, Radespiel, Rolf

“…A scale-resolving hybrid RANS–LES technique is applied to an aircraft-nacelle configuration under transonic flow conditions using the unstructured,…”
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Design and power calculation of HLFC suction system for a subsonic short-range aircraft by Prasannakumar, Adarsh, Wolff, Johannes, Radespiel, Rolf, Boermans, Loek, Hühne, Christian, Badrya, Camli

“…Hybrid laminar flow control (HLFC) can be a possible solution for future sustainable energy-efficient aviation. The current study proposes a MATLAB-based…”
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Microfluidic reactor for continuous cultivation of Saccharomyces cerevisiae by Edlich, Astrid, Magdanz, Veronika, Rasch, Detlev, Demming, Stefanie, Aliasghar Zadeh, Shobeir, Segura, Rodrigo, Kähler, Christian, Radespiel, Rolf, Büttgenbach, Stephanus, Franco-Lara, Ezequiel, Krull, Rainer

“…A diffusion‐based microreactor system operated with a reaction volume of 8 μL is presented and characterized to intensify the process understanding in…”
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Validation of the RANS-simulation of laminar separation bubbles on airfoils by WINDTE, Jan, SCHOLZ, Ulrich, RADESPIEL, Rolf

“…This paper presents RANS simulations of the low-Reynolds-number flow past an SD7003 airfoil at Re=6X104, where transition takes place across a laminar…”
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Improved Delayed Detached Eddy Simulation with Reynolds-stress background modeling by Herr, Marius, Radespiel, Rolf, Probst, Axel

“…A novel variant of Improved Delayed Detached-Eddy Simulation based on a differential Reynolds-stress background model is presented. The approach aims to…”
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Damping insert materials for settling chambers of supersonic wind tunnels by Wu, Jie, Radespiel, Rolf

“…This study describes the application of a novel damping insert material for reducing the flow fluctuations in a tandem nozzle supersonic wind tunnel. This new…”
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Powered turbofan effects on aircraft aerodynamics at high-lift: A study on the NASA CRM-HL by Magrini, Andrea, Subbian, Gokul, Radespiel, Rolf, Benini, Ernesto

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Flow quality experiment in a tandem nozzle wind tunnel at Mach 3 by Wu, Jie, Zamre, Pradip, Radespiel, Rolf

“…In this study, the disturbance characterization and flow quality improvement of a newly designed Tandem Nozzle Mach 3 Wind Tunnel are presented. Firstly, a…”
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RANS simulations of a tandem nozzle supersonic wind tunnel by Wu, Jie, Liu, Xijin, Radespiel, Rolf

“…RANS simulations of a tandem nozzle supersonic wind tunnel with perforated plates installed in the settling chamber are presented in this paper. For the sake…”
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Propulsive jet simulation with air and helium in launcher wake flows by Stephan, Sören, Radespiel, Rolf

“…The influence on the turbulent wake of a generic space launcher model due to the presence of an under-expanded jet is investigated experimentally. Wake flow…”
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Validation of the RANS-simulation of laminar separation bubbles on airfoils ☆ ☆ This article was presented at the German Aerospace Congress 2005 by Windte, Jan, Scholz, Ulrich, Radespiel, Rolf

“…This paper presents RANS simulations of the low-Reynolds-number flow past an SD7003 airfoil at Re = 6 × 10 4 , where transition takes place across a laminar…”
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Qualification of oil-based tracer particles for heated Ludwieg tubes by Casper, Marcus, Stephan, Sören, Scholz, Peter, Radespiel, Rolf

“…The generation, insertion, pressurization and use of oil-based tracer particles is qualified for the application in heated flow facilities, typically…”
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Fluid–structure analysis of a flexible flapping airfoil at low Reynolds number flow by Unger, Ralf, Haupt, Matthias C., Horst, Peter, Radespiel, Rolf

“…In this paper, a coupling simulation methodology is applied to investigate the fluid flow around a light and flexible airfoil based on a handfoil of a seagull…”
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Large-Eddy Simulations of realistic atmospheric turbulence with the DLR-TAU-code initialized by in situ airborne measurements by Auerswald, Torsten, Bange, Jens, Knopp, Tobias, Weinman, Keith, Radespiel, Rolf

“…► Generation of synthetic turbulence with given statistics. ► Synthetic turbulence based on measurements in the atmospheric boundary layer. ► Initialization of…”
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Multidisciplinary conceptual design for aircraft with circulation control high-lift systems by Werner-Spatz, Christian, Heinze, Wolfgang, Horst, Peter, Radespiel, Rolf

“…Active high-lift technologies have often proven their potential in aerodynamic analyses and wind tunnel tests, but have so far played only a minute role in…”
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Improved Delayed Detached Eddy Simulation with Reynolds-Stress Background Modeling by Herr, Marius, Radespiel, Rolf, Probst, Axel

“…Computers & Fluids, Volume 265, 2023 A novel variant of Improved Delayed Detached-Eddy Simulation based on a differential Reynolds-stress background model is…”
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High velocity impingement of single droplets on a dry smooth surface by Faßmann, Benjamin W., Bansmer, Stephan E., Möller, Thorsten J., Radespiel, Rolf, Hartmann, Michael

“…The vertical impact of single, mono disperse water droplets on a dry smooth surface was studied experimentally by means of shadowgraphy. A glass substrate was…”
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