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CFD-simulation of the flow through a fluidic element

Reisch, U. and Meuer, R. (2000) CFD-simulation of the flow through a fluidic element. Aerospace Science and Technology, 4, pp. 111-123.

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Abstract

The outflow channel of the fluidic jet reaction control element (FLE) and hence the direction of the thrust vector may be controlled by the injection of a secondary jet through one of the slits downstream of the inlet nozzle in the side walls. The main medium used is gaseous nitrogen, which is supplied from a reservoir chamber. Depending on the pressure there, three different operating modes can be distinguished. In order to reduce development time, the DLR Euler and Navier-Stokes code FLOWer has been extended for the numerical simulation of the flow through a fluidic element. In the present paper the code is verified and validated for this application. the influence of grid density, turbulence model, boundary conditions and the geometry of the external walls is investigated. The code is validated by comparing numerically obtained results with experimental data, including wall pressure and thrust measurements as well as differential interferometry photos. Numerical solutions are obtained for chamber pressures ranging from 60 to 100 bar, considering each case with and without injection of a secondary mass flow.

Document Type:Article
Additional Information: LIDO-Berichtsjahr=2000,
Title:CFD-simulation of the flow through a fluidic element
Authors:
AuthorsInstitution or Email of Authors
Reisch, U.UNSPECIFIED
Meuer, R.UNSPECIFIED
Date:2000
Journal or Publication Title:Aerospace Science and Technology
Refereed publication:Yes
In ISI Web of Science:Yes
Volume:4
Page Range:pp. 111-123
Status:Published
Keywords:aerodynamics, hypersonics, Navier-Stokes, internal flow, shock-shock interaction, boundary layer-shock interaction
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L ST - Starrflüglertechnologien
DLR - Research theme (Project):L - Military Technologies
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Institut für Entwurfsaerodynamik
Deposited By: Claudia Grant
Deposited On:16 Sep 2005
Last Modified:14 Jan 2010 20:11

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