An "'expansion tube "'is a type of impulse facility that is conceptually similar to a shock tube with a secondary diaphragm, an expansion section, a test section, and a dump tank where the endwall would be located in a shock tube.
42.
To date, the smaller size and lower peak pressures generated by these shock tubes make them most useful for preliminary, nondestructive testing of materials, validation of measurement equipment such as high speed pressure transducers, and for biomedical research as well as military applications.
43.
Blast waves are generated in research environments using explosive or compressed-gas driven shock tubes in an effort to replicate the environment of a military conflict to better understand the physics of blasts and injuries that may result, and to develop better protection against blast exposure.
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In this method, the conservative variables are considered as piecewise constant over the mesh cells at each time step and the time evolution is determined by the exact solution of the Riemann ( shock tube ) problem at the inter-cell boundaries ( Hirsch, 1990 ).
45.
A shock wave inside a shock tube may be generated by a small explosion ( blast-driven ) or by the buildup of high pressures which cause diaphragm ( s ) to burst and a shock wave to propagate down the shock tube ( compressed-gas driven ).
46.
A shock wave inside a shock tube may be generated by a small explosion ( blast-driven ) or by the buildup of high pressures which cause diaphragm ( s ) to burst and a shock wave to propagate down the shock tube ( compressed-gas driven ).
47.
He started working in this field with shock tubes, acting as pulsed power MHD generators delivering several teslas in a volume the size of a beer bottle, constituting the first step to cool down the gas in order to protect materials from heat, by controlling the electrothermal instability within MHD converters.
