This is a squall line test case simulating evolution of storms. The top panel displays the velocity field, while the bottom panel shows the temperature field along with clouds (gray) and rain (blue). The flow field is resolved on a high-order spectral element grid, and the semi-implicit time integrator is used.
We are developing a multiscale modeling framework (MMF) to simulate atmospheric flows. The model is currently under development on the xNUMA (Nonhydrostatic Unified Model of the Atmosphere) platform (Link). The objective of the research is to develop a computationally efficient multiscale method for simulating two distinct scales of global convections and microphysics separately on coarse and fine grids and coupling them together. The dynamics of air flow are modeled using the compressible Euler or Naiver-Stokes equations, and they are augmented by a moisture microphysics model.
Soonpil Kang 