Calibration of Businger-Arya Type of Eddy Viscosity Model's Parameters

Abstract

To solve the equation of motion for a turbulent oscillatory boundary layer, a suitable eddy viscosity model and its parameters are needed. The Businger-Arya type of eddy viscosity model, where the form of the eddy viscosity nearly linearly increases in the lower part of the boundary and exponentially decays in the outer part, has been recognized as one of the most suitable models. This model has three parameters to be determined. In this paper, these parameters are calibrated by comparison with a two-equation turbulence model.