| Abstract: | It is known that a precursor is formed ahead of the wave front when a shock wave interacts with a hot thin surface layer. In this case for weak and moderate shock waves the maximum pressure at the measurement points on the surface is less than for shock waves propagating in the unperturbed medium. Below, it is shown, using estimates and numerical and laboratory simulation that precisely the opposite effect takes place in the near zone of an intense blast during the strong shock wave stage, i. e., the pressure at the measurement point may increase many times.Moscow. Translated from Izvestiya Rossiiskoi Akademii Nauk, Mekhanika Zhidkosti i Gaza, No. 1, pp. 143–149, January–February, 1996. |
