Papers Published

1. Kasibhatla, Prasad S. and Peters, Leonard K. and Fairweather, Graeme, NUMERICAL SIMULATION OF TRANSPORT FROM AN INFINITE LINE SOURCE: ERROR ANALYSIS., Atmospheric Environment, vol. 22 no. 1 (1988), pp. 75 - 82 [0004-6981(88)90300-9] .
   (last updated on 2007/04/09)

   Abstract:
   The aim of this study is to identify parameters that affect the accuracy of numerical solutions of the transport equations involving point sources. Based on these, a grid can be chosen a priori and used for the entire simulation. A two-dimensional finite element model using bilinear elements is presented for the advection-diffusion problem with an infinite line source. This paper is restricted to two spatial directions, with advection dominating in the x-direction and turbulent diffusion dominating in the z-direction. Numerical results for an inert plume emanating from a single infinite line source show that the ratio of the advection time scale to the turbulent diffusion time scale, K//z DELTA x/u DELTA z**2, should be equal to or greater than one for the most accurate solutions.

   Keywords:
   COMPUTER SIMULATION;MATHEMATICAL TECHNIQUES - Error Analysis;