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A New Tool for Screen Integration in Internal Flow System and its Application to Wind Tunnel Design.

Seltsam, M. (1996) A New Tool for Screen Integration in Internal Flow System and its Application to Wind Tunnel Design. In: Proceedings 79th AGARD Fluid Dynamics Panel Symposium on Aerodynamics of Wind Tunnel Circuits and their Components, Moskau, Rußland, 30. September - 3. Oktober 1996.

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Abstract

To consider mesh screens in internal fluid flow a numerical method is modified. A Navier-Stokes method with the standard k-e turbulence model is employed. The new extended numerical method is applied to wide-angle diffuser flow. The comparison of calculated diffuser flows with experimental results yields the requisite correspondence. The numerical and experimental investigations lead to a modification of the actual windtunnel. After realization of the modification a remarkable reduction of spatial velocity disturbances is achieved. The capability of screens to suppress turbulence is displayed by comparison of turbulence level distributions before and past the optimization of the settling chamber.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=1996, pages=12,
Title:A New Tool for Screen Integration in Internal Flow System and its Application to Wind Tunnel Design.
Authors:
AuthorsInstitution or Email of Authors
Seltsam, M.UNSPECIFIED
Date:1996
Journal or Publication Title:Proceedings 79th AGARD Fluid Dynamics Panel Symposium on Aerodynamics of Wind Tunnel Circuits and their Components, Moskau, Rußland, 30. September - 3. Oktober 1996
Status:Published
Keywords:Screen flow, wind tunnel, wide-angle diffuser, flow turbulence.
HGF - Research field:UNSPECIFIED
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:UNSPECIFIED
DLR - Program:L ST - Starrflüglertechnologien
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 05:30

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