KAPPA-G,A Non-Gaussian Plume Dispersion Model: Description and Evaluation Against Tracer Measurements |
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| Authors: | T. Tirabassi M. Tagliazucca P. Zannetti |
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| Affiliation: | 1. FISBAT-CNR , Bologna , Italy;2. AeroVironment Inc. , Monrovia , California , USA |
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| Abstract: | This paper presents a mixed methodology for the simulation of atmospheric disperson phenomena in which vertical diffusion is computed using an analytical solution of the K-theory equation, while horizontal diffusion is simulated by the Gaussian formula. This new formulation, while maintaining a simple analytical form for the concentration field, incorporates the effects of power-law vertical profiles of both wind speed and eddy diffusivity. The performance of this approach, which has been implemented into a full computer package (KAPPA-G), is evaluated by comparison with data from SF6 tracer experiments. |
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