Modeling of Pollution Dispersion around a Cubic Obstacle
نویسندگان
چکیده
A code has been developed in C++ to solve the Navier-Stokes, continuity, and mass transfer equations using large eddy simulation (LES) for the turbulent flow. The pollution dispersion around a cube was investigated. The pollutant source was placed on the ground, right behind the cube. In the code, the finite volume (FV) formulation applied on the staggered grid arrangement for a structured mesh system. Smagorinsky-Lilly sub-grid scale (SGS) model was used. The discretisation scheme for all terms except the convection terms in the momentum equations, which adopts a TVD scheme, was the central difference scheme. The PISO algorithm showed faster convergence behavior than the other well known algorithm such as SIMPLE. The pollution dispersion behind the cube has been obtained assuming that the molecular diffusivity is dominant and neglecting the buoyancy effects. Jalal Abedi and Mohammad Omidyeganeh 2
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