Analysis of pseudo-shock system structure and asymmetry in Laval nozzles with parallel side walls
T Gawehn, A Gülhan, NS Al-Hasan, M Giglmaier… - 2010 - elib.dlr.de
T Gawehn, A Gülhan, NS Al-Hasan, M Giglmaier, NA Adams
2010•elib.dlr.deThe 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 …
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 …
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.
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