Generalized Rectangular Weir Equations
Generalized Rectangular Weir Equations
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广义矩形堰方程
DOI：
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发表时间：
1988
期刊：
影响因子：
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通讯作者：
P. Swamee
中科院分区：
文献类型：
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作者：
P. Swamee
当水头与高度之比或水头与宽度之比变大时，大多数现有的堰流公式就失去了意义。针对锐缘堰，已经推导出了一个对所有水头与高度比值都有效的全范围方程。对于有限宽顶堰，也给出了一个对所有水头与宽度比值都有效的全范围方程。该方程涵盖了窄顶堰、宽顶堰和长顶堰。通过在锐缘堰和有限宽顶堰方程之间提供平滑过渡，推导出了一个通用的矩形堰方程。该方程适用于所有水头与高度之比以及所有水头与宽度之比，或者说适用于锐缘堰和有限宽顶堰。这个方程适用于所有类型的矩形堰——锐缘的或宽顶的，以及底坎。希望该方程对于分析和设计目的是有用的。
Most of the existing weir formulas lose their significance as the ratios of head to height or head to width become large. A full range equation valid for all values of head-to-height ratio has been developed for a sharp crested weir. Also for finite crested weirs a full range equation valid for all values to head-to-width ratio has been presented. This equation covers narrow crested, broad crested and long crested weirs. Providing a smooth transition between sharp crested and finite crested weir equations, a generalized rectangular weir equation has been evolved. This equation is applicable to all head-to-height ratios and all head-to-width ratios or sharp crested and finite crested weirs. This equation is applicable to all types of rectangular weirs-sharp crested or broad crested, and sills. It is hoped that the equation will be useful for analysis and design purposes.