Problem of transient turbulent convection and a semiempirical profile of turbulent heat exchange coefficient in freshwater bodies


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A problem of convective cooling of both freshwater and saltwater lake is formulated. A transient one-dimensional turbulent model with variable layer depth is proposed to describe the process of freezing. The dependence of layer depth on time is determined by a universal equation describing the propagation of Deardorff convective layer. A combination of the main form of equations of Kolmogorov–Obukhov theory and available experimental data is shown to allow the construction of a universal profile of turbulent exchange coefficient, depending on the height.

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A. Vul’fson

Institute of Oil and Gas Problems

编辑信件的主要联系方式.
Email: vulfson@ipng.ru
俄罗斯联邦, ul. Gubkina 3, Moscow, 119333

O. Borodin

Institute of Oil and Gas Problems

Email: vulfson@ipng.ru
俄罗斯联邦, ul. Gubkina 3, Moscow, 119333

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