An explicit algebraic model of the planetary bounda-ry layer turbulence: test computation of the neutrally stratified atmospheric boundary layer
A.F. Kurbatskii1 and L.I. Kurbatskaya2
1Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, Novosibirsk, Russia
2Institute of Computational Mathematics and Mathematical Geophysics SB RAS, Novosibirsk, Russia
E-mails: kurbat@itam.nsc.ru, L.Kurbatskaya@ommgp.sscc.ru
Keywords: atmospheric boundary layer, algebraic models of Reynolds stresses and turbulent heat flux, stable stratification, internal waves, numerical modeling
Pages: 705–717
Abstract
An explicit algebraic
model of Reynolds stresses and the turbulent heat flux vector for the planetary
boundary layer in a neutrally stratified boundary layer of the atmosphere above
a homogeneous rough surface is tested. The version of the algebraic model
under consideration is constructed on the physical principles of the RANS (Reynolds-averaged Navier-Stokes)
approximation for describing stratified turbulence, it employs three forecasting equations, and a correct reproduction of the main characteristics of a neutral
atmospheric boundary layer ¾ the components of the mean wind velocity, the wind turn angle, and the turbulent statistics is shown. Test computations show that the proposed model may be used for
goal-oriented investigations of the atmospheric boundary layer.
DOI: 10.1134/S0869864317050067
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