Abstract
A recently developed fully explicit algebraic model of Reynolds stress and turbulent heat flux in a thermally stratified planetary atmospheric boundary layer without stratification has been used for a numerical study of the Ekman turbulent boundary layer over a homogeneous rough surface for different dimensionless surface Rossby numbers. A comparative analysis has been conducted for a closure model of the transport term in the prognostic equation of turbulent kinetic energy dissipation including third-order moments. Dependences of the total wind rotation angle on the Rossby number have been obtained. The calculated vertical profiles of mean velocity, turbulent stress, turbulent kinetic energy, surface-friction velocity, and boundary-layer height agree satisfactorily with observational and earlier obtained LES data.
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Original Russian Text © A.F. Kurbatskii, L.I. Kurbatskaya, 2018, published in Izvestiya Rossiiskoi Akademii Nauk, Fizika Atmosfery i Okeana, 2018, Vol. 54, No. 4, pp. 396–404.
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Kurbatskii, A.F., Kurbatskaya, L.I. Study of the Neutral Ekman Flow Using an Algebraic Reynolds Stress Model. Izv. Atmos. Ocean. Phys. 54, 336–343 (2018). https://doi.org/10.1134/S0001433818040266
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DOI: https://doi.org/10.1134/S0001433818040266