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) The normalized NSAs versus the Atwood number for (a)–(c) m = 4 and (d)–(f) m = 10, respectively. The RTI growth is perturbed by only the interface perturbation [(a) and (d)], only the velocity perturbation [(b) and (e)], and both velocity and interface perturbations [(c) and (f)], respectively.