Effect of membrane on measurements of turbulent mixing in shock tubes

L. Erez, Oren Sadot, G. Erez, L. Levin

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


Experiments measuring the time development of shock-wave induced turbulent mixing between two gases initially separated by a thin membrane have been performed in many laboratories. The main purpose of the experiments is comparison with Richtmyer-Meshkov instability theory. This comparison assumes that the membrane has no effect on development of the mixing.
We have performed similar experiments in which membranes of different
thicknesses were placed between two volumes of air. Series of schlieren photographs were taken using a copper-vapor laser pulsed at a rate of 10000
pulses per second and a shutterless rotating-prism camera. A mixing region developed and grew with time, despite the fact that only one gas was present. We have measured the dependence of the mixing width on membrane thickness. The existence of a membrane-induced mixing zone means that membrane effects must be accounted for in comparing theory
and experiment.
Original languageEnglish
Title of host publicationProceedings of the 5th International Workshop on Compressible Turbulent Mixing, Stony Brook USA
StatePublished - 1995


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