Abstract

Разработан новый эффективный способ селективного забора воды из промежу точного слоя трехслойного стратифицированного водоема. Математическим и ком пьютерным моделированием впервые в мире доказано утверждение о том, что ес ли из всех трех слоев водоема синхронно забирать воду, то поверхности раздела слоев не искривляются и в отличие от существующих способов не создаются кри тические ситуации забора воды. Доказательством эффективности разработанного способа стала возможность забирать воду из промежуточного слоя с высоким рас ходом. В промежуточном слое вода бывает холоднее и чище, чем в других слоях водоема. The purpose of the article is to develop an effective water intake method for selective water intake from the intermediate layer of a three-layer reservoir with density stratification, where the water is colder by 8–10 ∘C compared to the temperature of the surface layer and at the same time cleaner than in the bottom layer of the reservoir. Methodology of hydrodynamics of vortex free motion of an ideal incompressible fluid is used. A spatial three-layer contact initial boundary value problem has been set and solved analytically, which mechanically and mathematically models the above-described new method of selective water intake from the intermediate layer. A set of calculation formulas for the laws of oscillation and curvature of the interface of layers is obtained. The novelty of the method relies on the fact that water from all three layers is synchronously taken through three windows arranged on the side of the reservoir so that they fit in one vertical strip symmetrically relative to the initially stationary horizontal planes of the water layers section. Computer experiments have proved that with synchronous water intake from all three windows, the interface surfaces of the layers practically retain their original horizontal positions. In this regard, it becomes possible to selectively take water from the intermediate layer through an intermediate window with a relatively high flow rate. This is the effectiveness of the proposed method of water intake from a stratified reservoir.

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