MODELING OF A ONE-EQUATION LES FOR PLANT CANOPY FLOWS

Abstract

A one-equation-type subgrid-scale model for a Large Eddy Simulation of plant canopy flows was proposed in this paper. The subgrid-scale kinetic energy equation was derived from the equations of continuity and Navier-Stokes. This subgrid-scale kinetic energy equation was closed by modeling several unknown terms which appeared in the equation. The present model was compared with an experiment of an open channel water flow where the open channel had a model plant canopy made of cylindrical rods. The present model well estimated the experimental value.