Flow Parameters Behind the Shock Wave in Relaxing Gases
At the high temperatures which are produced behind shock waves, the gas molecules undergo physicochemical transformations. The internal degrees of freedom of the molecules are excited, dissociation ensures, new compounds form and the gas is ionized. All these processes affect the gasdynamic variables of the flow behind the shock wave. The extent of the effect of the physicochemical transformations on the flow variables of the gas is determined by the degree of molecular transformation. In the flow behind strong shock waves the degree of molecular excitation is high and the equilibrium excited state is reached rapidly, since the relaxation time of excitation processes at high temperatures is small. The gas variables reach their equilibrium values in fractions of microseconds.
KeywordsShock Wave Mach Number Shock Tube Flow Parameter Strong Shock Wave
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