Nonlocal treatment of the bouyancy-shear-driven boundary layer

E. Ferrero, N. Colonna

Research output: Contribution to journalArticlepeer-review

Abstract

A successful description of a convective boundary layer requires that the model employed takes into account the nonlocal nature of turbulent convection. In this paper new third-order moments (TOMs) are presented and tested. Numerical solutions are obtained using mean flow components and second-order moments as input. The problem of the turbulent damping of the TOMs is considered. The terms in the dynamic equations responsible for the unphysical growth of the TOMs are parameterized, taking into account their dependence on the integral length scale vertical profile. The calculated profites are presented and tested against large-eddy simulation data and aircraft measurements. In both cases the results compare favorably.

Original languageEnglish
Pages (from-to)2653-2662
Number of pages10
JournalJournals of the Atmospheric Sciences
Volume63
Issue number10
DOIs
Publication statusPublished - Oct 2006

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