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Experimental and Numerical Analysis of the Structure of Pseudo-Shock Systems in Laval Nozzles with Parallel Side Walls

Gawehn, Thomas and Gülhan, Ali and Al-Hasan, N. S. and Schnerr, G. H. (2009) Experimental and Numerical Analysis of the Structure of Pseudo-Shock Systems in Laval Nozzles with Parallel Side Walls. In: 27th International Symposium on Shock Waves. 27th International Symposium on Shock Waves, 19.-24. Juli 2009, St. Petersburg, Russland.

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Abstract

In the frame of the project "Gasdynamically initiated nanoparticle production", detailed numerical and experimental investigations of pseudo-shock systems in a Laval nozzle with parallel side walls have been carried out. The location of the pseudo-shock system is defined in this system of two chocked Laval nozzles by the ratio of the critical cross sections A2*/A1*, the stagnation pressure loss across the shock system and viscous losses. The wall pressure distributions and high velocity Schlieren videos recorded in the experiments are compared to the results of a steady and an unsteady numerical simulation. Corresponding results have been found.

Document Type:Conference or Workshop Item (Speech)
Title:Experimental and Numerical Analysis of the Structure of Pseudo-Shock Systems in Laval Nozzles with Parallel Side Walls
Authors:
AuthorsInstitution or Email of Authors
Gawehn, ThomasDLR
Gülhan, AliDLR
Al-Hasan, N. S.TU München
Schnerr, G. H.TU München
Date:July 2009
Journal or Publication Title:27th International Symposium on Shock Waves
Status:Published
Keywords:Laval Nozzle Flow, Pseudo-shock system, Shock train
Event Title:27th International Symposium on Shock Waves
Event Location:St. Petersburg, Russland
Event Type:international Conference
Event Dates:19.-24. Juli 2009
Organizer:Ioffe Institute of Russian Academy of Sciences
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W RP - Raumtransport
DLR - Research area:Space
DLR - Program:W RP - Raumtransport
DLR - Research theme (Project):W - Grundlagen Raumtransport - Anlagen und Messtechnik (old)
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Supersonic and Hypersonic Technology
Deposited By: Dr.-Ing. Thomas Gawehn
Deposited On:25 Jan 2010 15:21
Last Modified:07 Jun 2011 14:22

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