POWER LAWS AND SIMILARITY OF RAYLEIGH-TAYLOR AND RICHTMYER-MESHKOV MIXING FRONTS AT ALL DENSITY RATIOS

被引:300
作者
ALON, U [1 ]
HECHT, J [1 ]
OFER, D [1 ]
SHVARTS, D [1 ]
机构
[1] UNIV ROCHESTER, LASER ENERGET LAB, ROCHESTER, NY 14623 USA
关键词
D O I
10.1103/PhysRevLett.74.534
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The nonlinear evolution of large structure in Rayleigh-Taylor and Richtmyer-Meshkov bubble and spike fronts is studied numerically and explained theoretically on the basis of single-mode and two-bubble interaction physics at Atwood numbers (A). Multimode Rayleigh-Taylor bubble (spike) fronts are found as hB=BAgt2 [hs=s(A)gt2] with B=0.05, while Richtmyer-Meshkov bubble (spike) fronts are found as hB=aBtB (hs=asts(A)) with B=0.4 at all A's. The dependence of these scaling laws and parameters on A and on initial conditions is explained. © 1995 The American Physical Society.
引用
收藏
页码:534 / 537
页数:4
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