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AXISYMMTERIC INVESTIGATION OF THE VAC S6 SHORT NOZZLE WITH FORCED EXTERNAL FLUCTUATION

Lüdeke, Heinrich (2007) AXISYMMTERIC INVESTIGATION OF THE VAC S6 SHORT NOZZLE WITH FORCED EXTERNAL FLUCTUATION. In: Proceedings of the ATAC-FSCD WORKSHOP « AFTER-BODY AND NOZZLE FLOWS » November 15-16 at ESA/Estec, Noordwijk, The Netherlands. ATAC-FSCD WORKSHOP: « AFTER-BODY AND NOZZLE FLOWS », 2006-11-15 - 2006-11-16, ESA/Estec, Noordwijk, The Netherlands. (In Press)

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Abstract

The present study examines the nature of separation shocks in over-expanded axisymmetric nozzles at a defined pressure ratio under steady viscous flow conditions. Furthermore unsteady computations on hybrid meshes are carried out for simulations of a realistic nozzle configuration. Data of existing experiments in the FFA HYP500 wind tunnel are used in both cases to underline the achieved numerical results. The unsteady simulations show that the viscous shock system in the nozzle can be treated as a damped oscillator.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:AXISYMMTERIC INVESTIGATION OF THE VAC S6 SHORT NOZZLE WITH FORCED EXTERNAL FLUCTUATION
Authors:
AuthorsInstitution or Email of Authors
Lüdeke, HeinrichUNSPECIFIED
Date:June 2007
Journal or Publication Title:Proceedings of the ATAC-FSCD WORKSHOP « AFTER-BODY AND NOZZLE FLOWS » November 15-16 at ESA/Estec, Noordwijk, The Netherlands
Refereed publication:No
In ISI Web of Science:No
Editors:
EditorsEmail
ESA, UNSPECIFIED
Status:In Press
Keywords:CFD, Nozzle flow, unsteady, external fluctuation
Event Title:ATAC-FSCD WORKSHOP: « AFTER-BODY AND NOZZLE FLOWS »
Event Location:ESA/Estec, Noordwijk, The Netherlands
Event Type:international Conference
Event Dates:2006-11-15 - 2006-11-16
Organizer:ESA-ESTEC
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W - no assignement
DLR - Research area:Space
DLR - Program:W - no assignement
DLR - Research theme (Project):W -- no assignement (old)
Location: Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Spacecraft
Deposited By: Dr.-Ing. Heinrich Lüdeke
Deposited On:03 Sep 2007
Last Modified:12 Dec 2013 20:27

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