Open AccessNonlinear threshold of two-dimensional Rayleigh-Taylor growth for incompressible liquid
Author(s) -
J. F. Wu,
Wenhua Ye,
Weiyan Zhang,
He Xin
Publication year - 2003
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.52.1688
Subject(s) - rayleigh–taylor instability , nonlinear system , compressibility , mechanics , rayleigh scattering , physics , optics , quantum mechanics , instability
Nonlinear threshold of two-dimensional Rayleigh-Taylor(RT) instability is analyzed in planar and cylindrical and spherical geometries. Density amplitude is defined relating to instable interface and formulas of nonlinear threshold values for RT instability in three kinds of geometries are given, then high-order algorithm is used to simulate two-dimensional RT instability in these geometries, and t he simulation results agree well with the formulas.