Monthly Weather Review · 1986 · 159 citations · 0 references
ComputingAerospace EngineeringComputational Engineering3D ModelingComputational Fluid DynamicsGrid ComputingGrid GenerationMesh GenerationMesh ProcessingTerrain ModelingComplex Terrain FlowComplex Terrain Wind FlowGrid NestingJet Streak DynamicsNested Grid ModelingNested Grid RepresentationsNested Grid StructuresNested Grids
A two-way interactive, nested-grid system tested with The Pennsylvania Slate University/INCAR three-dimensional mesoscale model is described. A mesh structure, designed to minimize numerical noise, together with a procedure for obtaining compatible coarse grid mesh (COM) and fine grid mesh (FOM) terrain conditions, is presented. Also, a method to initialize the nested-grid meshes is proposed. The nested-grid system has been tested with real data and raw terrain under different severe conditions. A 12-h simulation of a propagating jet streak over complex terrain is presented; the results indicate relatively noise-free solutions on both the OGM and FGM domains.