Abstract
Large-eddy simulation(LES) is applied to the problem of atmospheric dispersion around a normal plate for oncoming turbulence, which is time-sequentially generated by unsteady numerical simulation of spatially-developing boundary layer in the driver unit as another computational domain. The present numerical model is validated in comparison with the previous wind tunnel experimental data. Also, based on the computed data, we investigate turbulence and dispersion fields strongly influenced by complex dynamic behavior of separated shear layers and large eddies in the wake, and clarify physical mechanism of plume entrainment into the wake region of a normal plate.
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