Author(s)

D.W. Pepper & D.B. Carrington

Abstract

A finite element model which incorporates h-adaptation is used to calculate windfields and pollutant dispersion over irregular terrain. Meteorological data are used to generate a diagnostic (mass consistent) flow field, which is subsequently used as initial conditions for the prognostic solution of the time-dependent equations of motion and species transport. The model runs on PCs, SGI workstations, and a Cray Y-MP. 1 Introduction Predicting windfields and the trajectory of hazardous material released into the atmosphere resides predominantly with the accuracy in simulating the advection terms*. Efforts have been made to examine efficient numerical methods which accurately solve windfields and species transport, and automatically maintain dispersion error control . One particularly attractive method which

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