2D MHD simulation of the Kelvin-Helmholtz instability
2D MHD simulation of the Kelvin-Helmholtz instability shows forward and inverse energy cascades. The forward energy cascade is triggered by the secondary Rayleigh-Taylor instability [Matsumoto and Hoshino, GRL, 2004] and the inverse cascade is accomplished by nonlinear mode couplings between the fastest growing mode and other KH unstable modes [Matsumoto and Seki, JGR, 2010].