Coupling between velocity and interface perturbations in cylindrical Rayleigh

Coupling between velocity and interface perturbations in cylindrical Rayleigh–Taylor instability

Guo Hong-Yu^{1, 2}, Wang Li-Feng^{2, 3}, Ye Wen-Hua^{2, 3, †}, Wu Jun-Feng², Zhang Wei-Yan^{2, 3}

(color online) Temporal evolutions of normalized amplitude of (a) the fundamental mode , (b) the second harmonic , and (c) the third harmonic for m = 4 at A = 1. The solid lines represent the results initiated only by an interface perturbation with , the dashed lines are initiated only by a velocity perturbation with v = 0.004λ.