Home – Home – Jornals – Thermophysics and Aeromechanics 2002 number 2

The paper continues the study of gasdynamic track in supersonic heterogeneous setups using a mathematical model, which was initiated in [1 - 4]. The effect of combustion gas pressure in the prechamber p₀₀  , on the kinetic energy of particles W_pw  bombarding the bottom of erosion-produced cavity was analysed. The top levels of pressure p^*₀₀  were calculated: the further pressure growth does not bring a gain in W^*_pw  for the case of a target placed at a fixed distance from the nozzle exit. The criterial relationship was formulated for limiting kinetic energy flux as a function of the nozzle-target distance and the dimensionless depth of cavity.