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Article

An integral model of the convective jet including the pressure effect and the forms of the vertical fluxes in the turbulent surface layer of the atmosphere

Journal of Physics: Conference Series. 2018. Vol. 955. P. 1-6.
Vulfson A. N., Nikolaev P. V.

In the article, it is considered a modification of an integral model of an unsteady turbulent jet with a pressure force. Stationary solutions of the presented model are compared with well-known analytical results of classical models. It is shown that the inclusion of the pressure forces changes the dynamic parameters of a jet by about 12%. Analytical solutions of a steady forced buoyant jet of the atmospheric convective boundary layer and a spontaneous jet of a surface layer are presented. The simplest model of an ensemble of spontaneous jets of convective surface layer is constructed. It is shown that an ensemble of spontaneous jets forms a dependence of the turbulent moments and heat eddy diffusivity on the altitude within the convective boundary layer.