Rotating flows with Particles
Abstract
We propose studying a class of problems in the turbulent regime, with which we have had previous experience in a variety of limits. These include, inter-alia, Rotating Convection, Rayleigh-Benard Convection with nonlinear equations of state and phase changes, Instabilities of Radially stratified vortices, Ice-collisions in cold clouds and the resulting charge transport, and Planetesimal formation by collisions of irregular solid bodies, tracked with immersed boundary methods. This research is highly interdisciplinary because the underlying physical processes occur in a wide range of problems in Astrophysics, geophysics, soft-condensed matter physics and elsewhere. However, many of the settings, such as planetary accretion, cannot be observed in-situ or appropriately modeled in the laboratory. Thus, although we are in a position to use both experimental results and other numerical codes (see below) to benchmark our results, it is central to be able to explore them using DNS because the translation of the results across sub disciplines relies upon this approach. Our results will be of interest in many communities of physical science as we as in fundamental hydrodynamics.
