Mach number measurement of the gas flow from the supersonic nozzle in gas puff Zpinch

The Mach number of the gas flow from the supersonic nozzle in a gaspuff Zpinch was determined by the two pressure transducer method. The measured Mach number rises with time and reaches to a maximum value of 4.25 that is close to 4.8, the value from a steadystate gas flow calculation. This result shows that the steadystate gas flow calculation can be used to estimate the Mach number of gas flow from a supersonic nozzle in gas puff Zpinch.