Nomenclature a = (dp/dp) 172 = sound speed / = empirical constant for a given entropy k = empirical constant for a given entropy M s = shock Mach number p = pressure s = entropy T = temperature u -velocity v = specific volume z = compressibility /3 = empirical constant for a given entropy p -density Subscripts f = final state i = initial state 0 = reference (po = 1 atm; po = 1 amagat) 1 = state of quiescent test gas 4 = state of initial driver gas
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