Numerical computation on the tailored shock Mach numbers for a hydrogen-oxygen detonation shock tube

Abstract

The numerical solution of tailored state parameters was obtained for a shock tube driven by hydrogen-oxygen detonation.Using air as testing gas,the tailored shock Mach numbers increased with the increase of the concentration of hydrogen and it reached maximum when the molar concentration of hydrogen was 90%.In the case of the high tailored shock Mach numbers,the real gas effects should be taken into account and the numbers were higher than that in the ideal gas case.Value of the tailored shock Mach numbers using air-hydrogen as testing gas was smaller than that using air as testing gas.By adjusting the initial parameters of driver-driven gas,the condition that the contact surface is tailored and Taylor wave is just eliminated can be achieved.