Gas combination for shock wave enhancement |
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| Authors: | D Igra O Igra |
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| Institution: | (1) REFAEL, Aerodynamics Group, P. O. Box 2250, Haifa, 31021, Israel;(2) Department of Mechanical Engineering, The Pearlstone Center for Aeronautical Engineering Studies, Ben Gurion University, Beer Sheva, Israel |
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| Abstract: | It was recently demonstrated that shock wave enhancement could be achieved when a shock propagates in a constant cross-section
duct through pairs of air–helium layers having a continually decreasing width (Igra and Igra in Shock Waves 16(3):199–207).
A parametric study was conducted aimed at finding a two-layered, light–heavy gas arrangement that yields maximal shock enhancement;
the heavy and the light gases used were air and helium, respectively. Effects associated with changes in following parameters
were investigated: the number of alternating heavy/light gas layers, the applied reduction ratio between successive layers
thickness, and the initial shock wave Mach number.
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| Keywords: | Shock wave Shock wave interaction with gas layers Pressure amplification |
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