An Eddy Diffusivity Model Derived From The
Turbulent Kinetic Energy Model
Author(s)
O.L.L. Moraes, A.P. Oliveira & G.A. Degrazia
Abstract
A model for the eddy diflusivity coefficient for the stable planetary boundary
layer is developed by using the / -model from the Turbulent Kinetic Energy
theory (TKE). The length scale used was derived by Degrazia et al [1] and the
turbulent kinetic energy is obtained from a spectral model presented by Moraes
et al [2]. The eddy diflusivity obtained is tested through comparison with
experimental, numerical and theoretical models presented in the literature.
1. Introduction
Much has been written in recent years concerning modeling and
parameterizations of the planetary boundary layer (PBL), particularly in
formulations that require turbulent fluxes of momentum, heat and moisture.
These turbulent fluxes are primarily resp
Keywords
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