Numerical simulation of particle trajectories in inhomogeneous turbulence,I: Systems with constant turbulent velocity scale |
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| Authors: | J D Wilson G W Thurtell G E Kidd |
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| Institution: | (1) Department of Land Resource Science, University of Guelph, Guelph, Ontario, Canada;(2) New Zealand Meteorological Service, P.O. Box 722, Wellington, N.Z. |
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| Abstract: | A means of numerical simulation of particle trajectories in inhomogeneous turbulence is described. The method employs a simple coordinate transformation which allows a trajectory in inhomogeneous turbulence to be converted to a corresponding trajectory in homogeneous turbulence. Concentration distributions predicted by the trajectory-simulation method agree precisely with analytical solutions in the special cases of homogeneous turbulence, turbulence with power-law wind and eddy diffusivity profiles, and the neutral atmospheric surface layer. |
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