Оп evolution of intensive acoustic pulses with finite Reinolds numbers

We propose a numerical method of integrating Buger's equation which is free from limitations on the value of acoustic Reynolds number. We calculate the shape of unipolar and bipolar pulses in various cross section of the nonlinear medium. We construct the functional dependence of the peak value of the perturbation on the distance, on the basis of which we propose a new scheme for determining the nonlinear moduli in pulse measurements.