Author(s)

R.L. Lee, S.T. Chan, J.M. Leone, Jr D.E. Stevens

Abstract

A three dimensional, finite element-based, flow and dispersion model is used to simulate the transport and fate of hazardous releases in the atmosphere. Numerical results are presented for two experimental studies: (1) Airflow and dispersion over multiple blocks in a wind tunnel; and (2) Tracer study of a point release in the neighborhood of a building complex. 1 Introduction Predictions of airflow and dispersion over urban areas continue to be a challenging problem because of the presence of extremely heterogeneous surface features within typical centers of population. For the case where atmospheric conditions are highly stable (low Froude number flows), th

Keywords