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COMPARISON OF EXPERIMENTAL AND NUMERICAL INVESTIGATIONS ON SIDE JETS IN A SUPERSONIC CROSS FLOW

Kovar, A. and Schülein, E. (2004) COMPARISON OF EXPERIMENTAL AND NUMERICAL INVESTIGATIONS ON SIDE JETS IN A SUPERSONIC CROSS FLOW. Royal Aeronautical Society, London, 14./15.9.04.

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Abstract

Interaction of flows in the vicinity of three different jet configurations, ejecting air from a flat plate in supersonic cross flow were investigated experimentally and numerically. The test conditions include the variation of jet pressure ratios up to p0j/p„V = 245 at a Mach number of M„V = 5 and a unit Reynolds number of Re1„V = 38„e106 m-1. The investigated test cases are: a) single jet; b) 4 jets positioned in-line in main flow direction; c) 4 jets positioned side-by-side in span-wise direction. The nozzle diameters for all cases are chosen in a way that the same cross-section areas (mass flows) are granted. The surface pressure is predicted quite well, but there are certain deficiencies regarding the heat flux. The results of the comparison are presented and discussed and the experimental data are used to validate the applied code.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2004,
Title:COMPARISON OF EXPERIMENTAL AND NUMERICAL INVESTIGATIONS ON SIDE JETS IN A SUPERSONIC CROSS FLOW
Authors:
AuthorsInstitution or Email of Authors
Kovar, A.UNSPECIFIED
Schülein, E.UNSPECIFIED
Date:2004
Status:Published
Keywords:Side jets, numerical simulation, surface pressure distribution, jet pressure ratio, heat flux
Event Title:Royal Aeronautical Society, London, 14./15.9.04
Organizer:RAeS
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Military Technologies
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology
Deposited By: elib DLR-Beauftragter
Deposited On:31 Jan 2006
Last Modified:14 Jan 2010 19:34

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