Heterogeneous cutting devices: Criteria for gas-dynamic similarity
D.S. Mikhatulin
Joint Institute for High Temperatures RAS, Moscow, Russia
Pages: 527–535
Abstract
This paper continues the research of a gas-dynamic duct of supersonic heterogeneous devices with the use of a mathematical model developed earlier. Analysis is performed using dimensionless criteria of acceleration/deceleration path. A new criterion was introduced: the ratio of those lengths. This helps to estimate how the nozzle length, cut depth, pressures and temperatures in the pre-chamber and after the shock wave influence the flux of kinetic energy of particles bombarding the target surface (without real calculation of their acceleration (deceleration)). This excludes the particles from process analysis.
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