caa a22 4500 475775465 CHVBK 20180406123630.0 cr unu---uuuuu 170329e20000101xx s 000 0 eng 10.1007/BF02465232 doi (NATIONALLICENCE)springer-10.1007/BF02465232 Charakhch'an A. aut Richtmyer-Meshkov instability of an interface between two media due to passage of two successive shocks [Elektronische Daten] [A. Charakhch'an] The instability of a free surface of aluminum after passage of two shocks that follow one after the other at a certain time interval is studied numerically. The first shock is rather strong (the postshock pressure is about 75 GPa). It is shown that if at the moment when the second shock arrives at the free surface, the perturbation evolution is nonlinear, then, in contrast to the linear stage, the change in the growth rate of the amplitude depends weakly on the wavelength of the initial perturbation. A formula is proposed which describes the effect of the second shock on the amplitude growth rate and in which the main structure of Richtmyer's formula is preserved. It is demonstrated that the parameters of the second shock that ensure freezing of the instability can be determined using only the growth rate of the amplitude. Kluwer Academic/Plenum Publishers, 2000 Journal of Applied Mechanics and Technical Physics Kluwer Academic Publishers-Plenum Publishers 41/1(2000-01-01), 23-31 0021-8944 41:1<23 2000 41 10808 https://doi.org/10.1007/BF02465232 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02465232 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Charakhch'an A. aut NATIONALLICENCE 773 0- Journal of Applied Mechanics and Technical Physics Kluwer Academic Publishers-Plenum Publishers 41/1(2000-01-01), 23-31 0021-8944 41:1<23 2000 41 10808 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer