ЧИСЛЕННЫЕ ИССЛЕДОВАНИЯ ПРОХОЖДЕНИЯ ДЛИННЫХ ВОЛН ЧЕРЕЗ ВОДОСЛИВ С ШИРОКИМ ПОРОГОМ
Journal Title: INTERNATIONAL ACADEMY JOURNAL "Web of Scholar" - Year 2018, Vol 1, Issue 1
Abstract
The paper presents the results of a numerical study of the motion of a water flow through a weir with a wide threshold, expressed in the form of long waves. The developed model uses the design formula of a weir with a wide threshold, assuming that long-wave processes occur in the tunnels of the structure, and they are described by the one-dimensional hydrodynamic equations of Sеn-Venan. It has been established that the values of the Froude number and the Kinetic Parameter in a calm flow increase with the narrowing of the channel and decrease with its expansion, while in the turbulent flow, on the contrary, it decreases with the narrowing of the channel, but increases with its expansion, which means that the flow from a calm state to a turbulent can occur only when the shape of the channel changes from tapering to expanding, and at the narrowest cross-section of the channel, the Froude number and the Kineticity Parameter will be equal to their critical values. As a result of numerical experiments, the numerical values of the flow coefficient are obtained, which, after the flow regime is established, is the flow coefficient of the weir with a wide threshold. Comparisons with theoretical values gave satisfactory results.
Authors and Affiliations
Д. Р. Базаров, С. Я. Школьников, Д. А. Мавлянова, И. Д. Раимова, Ш. Р. Бобокандов, М. Р. Хуразбаев
Keywords
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- EP ID EP404360
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