APPLICATION OF LASER SHLIEREN METHOD FOR MEASURMENT OF SHOCK FRONT STRUCTURE IN HELIUM WITH SMALL ADMIXTURE OF HEAVY MOLTCULES
Change in the gradient of gas density in the shock wave front in He containing (0.1 - 1.0)%Xe is measured using the laser schlieren method in the range of Mach numbers M = (2.8 - 3.1) at equilibrium pressures behind the shock front P = (0.4 - 0.6) atm. It is found that the length of the shock front in this range increases linearly with the concentration of Xe.