CH3D

CH3D-WES
USAEWES Coastal And Hydraulics Laboratory, 1997
PC and Unix

CH3D-WES is a time-varying 3-dimensional hydrodynamic and transport model based on boundary-fitted curvilinear numerical grid. CH3D-WES numerically solves the shallow water Navier Stokes equations on each numerical grid cell. The basic code of CH3D-WES was first developed by Sheng (1986) for WES and has been extensively modified by WES and the CH3D-WES version has been recoded for more efficient computing. The boundary-fitted coordinates feature of the model provides enhancement to fit irregular shoreline configuration and natural or man-made deep channels that often exist in estuaries, bays and harbors.

Physical processes governing the circulation patterns and vertical mixing that are modeled include tides, wind, density effects (salinity and temperature) freshwater inflows, turbulence and the effect of the earth's rotation. Water surface elevation and water velocities (u,v,w) in the water column at each grid cell are output from the model. Turbulence module employed in CH3D-WES simulates vertical mixing in the water column and, therefore, CH3D-WES simulates strafication/destratification processes that often constitute important mechanisms for biological and water quality variations.

See an example here (371K download).