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Experimental and Theoretical Study of a Wide-Angle Diffuser Flow with Screens.

Seltsam, M. (1994) Experimental and Theoretical Study of a Wide-Angle Diffuser Flow with Screens. 18th AIAA Aerospace Ground Testing Conference, Colorado Springs/CO, USA, 20-23 June 1994.

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Abstract

A numerical method is modified to enable the computation of diffuser flows considering mesh screens. A Navier-Stokes method with the standard k-e turbulence model is applied. Screen influence on the velocity distribution is demonstrated using flow in a straight pipe. A comparison of calculated diffuser flows is made with experimental results. The numerical and experimental investigations on the wide-angle diffuser flow of the Transonic Windtunnel Goettingen have led to a modification of the actual windtunnel. An appreciable reduction of velocity- disturbances is achieved after realization of the modification.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=1994, pages=9,
Title:Experimental and Theoretical Study of a Wide-Angle Diffuser Flow with Screens.
Authors:
AuthorsInstitution or Email of Authors
Seltsam, M.UNSPECIFIED
Date:1994
Series Name:AIAA 94-2510
Status:Published
Keywords:Diffuser, Wide-angle Diffuser, Wind-tunnel, Screen, Flow Separation, Turbulence Manipulation, Navier-Stokes Method
Event Title:18th AIAA Aerospace Ground Testing Conference, Colorado Springs/CO, USA, 20-23 June 1994
HGF - Research field:UNSPECIFIED
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:UNSPECIFIED
DLR - Program:L SI - Versuchs- und Simulationstechniken
DLR - Research theme (Project):UNSPECIFIED
Location: Köln-Porz
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Supersonic and Hypersonic Technology
Deposited By: elib DLR-Beauftragter
Deposited On:02 Apr 2006
Last Modified:27 Apr 2009 05:28

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