Figure 3
From: Pure single-mode Rayleigh-Taylor instability for arbitrary Atwood numbers
Comparisons of the dimensionless velocities \(v\sqrt{k/g}\) of the bubbles top (a,b) and the spikes (bottom c,d) among the classical theory (circles), the present potential theory (dots) and the numerical simulation (stars) for Atwood numbers A = 0.2 (a,c) and A = 0.8 (b,d) vs dimensionless time \(\sqrt{kg}t\). The initial amplitude of the interface is kε = 0.1256.
