Výsledky vyhledávání - "Andreas K. Flock"

Contribution of Numerical and Experimental Flow Simulations to the Aerodynamic Data Base of the DLR Reusable Flight Experiment ReFEx

Autor: Viola Wartemann, Andreas K. Flock, Clemens Hans-Joachim Merrem, Ntarinai Konosidou

Publikováno v: Notes on Numerical Fluid Mechanics and Multidisciplinary Design ISBN: 9783030795603

ReFEx is a Reusable Flight Experiment of the DLR. For the layout of the aerodynamic shape of the vehicle, the identification of a flight trajectory and finally the control systems, extensive data sets are necessary. The focus of this paper lays on th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::178b7c42e11df11dfb1d8501233f7108
https://elib.dlr.de/143731/

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DLR Reusability Flight Experiment ReFEx

Autor: Sven Stappert, Daniel Kiehn, Marco Sagliano, Andreas K. Flock, Andreas Bierig, René Schwarz, Peter Rickmers, Henning Elsäßer, Jens Windelberg, Tobias Ruhe, Clemens Hans-Joachim Merrem, Viola Wartemann, Eugen Ksenik, Thorben Bruns, Thomas Thiele, Alexander Kallenbach, Waldemar Bauer, Jan Thimo Grundmann

The German Aerospace Center (DLR) is currently developing the Reusability Flight Experiment (ReFEx). The successor of the already performed hypersonic flight experiments SHEFEX I and II shall be launched on a Brazilian VSB-30 sounding rocket in 2022

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7eb6959915ee5ab57b45dc7776a5f96a
https://doi.org/10.1016/j.actaastro.2019.11.034

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Experimental and Numerical Performance Analysis of a Self-Starting Three-Dimensional Scramjet Intake

Autor: Andreas K. Flock, Ali Gülhan

In this work, a three-dimensional intake model was investigated in a blowdown wind tunnel and results were compared and complemented with Reynolds-averaged Navier–Stokes simulations. The intake model was equipped with a movable cowl with which the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::15d3eca1e70436edb3901d46a7906356
https://doi.org/10.2514/1.b36602

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Experimental and Numerical Performance Analysis of a Self Starting, Three-Dimensional SCRamjet Intake

Autor: Andreas K. Flock, Ali Guelhan

Publikováno v: 20th AIAA International Space Planes and Hypersonic Systems and Technologies Conference.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::938f70ae32f84e0e39e4ba489f10f034
https://doi.org/10.2514/6.2015-3680

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Axisymmetric SCRamjet Engine Design and Performance Analysis

Autor: Johannes C. Riehmer, Ali Guelhan, Andreas K. Flock

In the present work, we treat the SCRamjet engine as a system, by coupling different analytical design tools. For the intake portion a Busemann tool was used, the combustion chamber was modeled with a one dimensional reactor, and the nozzle was model

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5376d48b416630e4a2cff40f1c5caa9e
http://elib.dlr.de/97945/

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Viscous Effects and Truncation Effects in Axisymmetric Busemann SCRamjet Intakes

Autor: Ali Gülhan, Andreas K. Flock

Publikováno v: 53rd AIAA Aerospace Sciences Meeting.

While designing a Busemann intake, we encountered two main constraints: First, caused by the displacement of the boundary layer, the pressure levels in a Busemann intake were higher (40%) than the values predicted analytically; these effects were lab

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a2e0dcf4ed7fcd04ce4211fe774b2386
https://doi.org/10.2514/6.2015-0108

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Experimental Investigation of the Starting Behavior of a Three-Dimensional Scramjet Intake

Autor: Ali Gülhan, Andreas K. Flock

To this date, there is no generally valid method to accurately predict intake starting for a certain three dimensional scramjet intake configuration. Therefore, experiments are conducted at Mach6 and 7 in a blowdown wind tunnel on a three-dimensional

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::785d9ed81df241a526f5371184ad3747
https://elib.dlr.de/97938/

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Experimental Investigation of the Starting Behavior of a three-dimensional SCRamjet Intake with a Movable Cowl and Exchangeable Cowl Geometry at Different Mach Numbers

Autor: Andreas K. Flock, Ali Guelhan

Publikováno v: 19th AIAA International Space Planes and Hypersonic Systems and Technologies Conference.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0361243478e60593df579ff0545b727e
https://doi.org/10.2514/6.2014-2934

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Experimental statistics of droplet trajectory and air flow during aerodynamic fragmentation of liquid drops

Autor: Andreas K. Flock, Hans-Jörg Bauer, Jun Chen, Daniel R. Guildenbecher, Paul E. Sojka

The deformation and fragmentation of single ethyl alcohol drops injected into a continuous air-jet is experimentally investigated. High speed shadowgraphy coupled with image contour recognition is used to record the instantaneous droplet shape, traje

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d11f671c0b54bd4ce443822e53e31e2e
https://doi.org/10.1016/j.ijmultiphaseflow.2012.06.008

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