Analysis of Pseudo-Shock System Structure and Asymmetry in Laval Nozzles with Parallel Side Walls
Gawehn, T. and Gülhan, A. and Al-Hasan, N. S. and Giglmaier, M. and Adams, N.A. (2010) Analysis of Pseudo-Shock System Structure and Asymmetry in Laval Nozzles with Parallel Side Walls. 19th Interantional Shock Interaction Symposium, August 31 - September 03, Moscow.
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The scope of this work is to investigate the structure and stochastic asymmetry of pseudo-shock systems in Laval nozzles with parallel side walls in detail by numerical and experimental means. The location of the pseudo-shock system is defined in an adiabatic system of two successive chocked Laval nozzles by the ratio of the critical cross sections A2*/A1*, the stagnation pressure loss across the shock system and viscous losses. Depending on the geometry and the test conditions, the pseudo-shock system attaches stochastically to the upper and lower nozzle wall where the driving mechanism is analysed by means of high speed and short pulse Schlieren visualisation and numerical simulations.
|Document Type:||Conference or Workshop Item (Speech)|
|Title:||Analysis of Pseudo-Shock System Structure and Asymmetry in Laval Nozzles with Parallel Side Walls|
|Keywords:||Laval nozzle, shock wave/boundary layer interaction, pseudo shock wave, asymmetric shock train|
|Event Title:||19th Interantional Shock Interaction Symposium|
|Event Type:||international Conference|
|Event Dates:||August 31 - September 03|
|Organizer:||Russian Academy of Sciences|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Space|
|HGF - Program Themes:||W RP - Raumtransport|
|DLR - Research area:||Space|
|DLR - Program:||W RP - Raumtransport|
|DLR - Research theme (Project):||other|
|Institutes and Institutions:||Institute of Aerodynamics and Flow Technology > Supersonic and Hypersonic Technology|
|Deposited By:||Dr.-Ing. Thomas Gawehn|
|Deposited On:||15 Dec 2010 14:53|
|Last Modified:||15 Dec 2010 14:53|
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