An Improved Puff Algorithm for Plume Dispersion Simulation

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Abstract
Recent developments in puff methods for simulating plume behavior are discussed. Modifications to the basic methodologies are introduced which make it more generally applicable to non-stationary and non-homogeneous conditions, as well as calm wind situations. The modifications described should also allow significant reductions of computer storage and running time requirements. The algorithm presented could easily be extended to the treatment of segment or area sources. The model accurately reproduces the analytical solution to the steady-state Gaussian plume equation.

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