Numerical simulations of Rayleigh–Taylor front evolution in turbulent stratified fluids

We present state-of-the-art numerical simulations of a two-dimensional Rayleigh–Taylor instability for a compressible stratified fluid. We describe the computational algorithm and its implementation on the QPACE supercomputer. High resolution enables the statistical properties of the evolving interface that we characterize in terms of its fractal dimension to be studied.