Generality of the Rozovskii's formulas on circulation at river bends
Generality of the Rozovskii's formulas on circulation at river bends
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发表时间：
2003
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通讯作者：
Song Zhi
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作者：
Song Zhi
在弯曲环流理论的研究和应用中，Rozovskii公式是非常重要的，但这些公式的通用性很弱，因为对于光滑和粗糙的床面分别有两个不同的公式，而且考虑到Rozovskii公式推导中存在的上述问题，在这些公式中以05作为卡门常数是不合理的。本文利用底部非滑移条件，导出了环流速度分布的一般公式和横面坡度的一般公式。对光滑床面和粗糙床面的实验数据分别与公式进行了验证，结果表明，该通用公式最符合实际，适用于不同粗糙度的床面。因此，这是一个计算弯道环流速度剖面的通用公式。
In the research and applications of bend circulation theories, the Rozovskii's formulas are very important, but the universality of these formulas is weak, because there are two different formulas for smooth and rough bed surface respectively Besides, it is unreasonable to take 05 as the Karman's constant in these formulas In consideration of the above problems in the derivation of the Rozovskii's formulas, the general formula of circulation velocity profile and the general formula of the cross surface slope are derived by use of the nonsliding condition at the bottom in this paper Comparison of verification of the experimental data with smooth and rough bed surface respectively with the Rozovskii's formulas shows that this general formula fits in best with reality and holds true for bed surfaces of different roughnesses. Thus it is a general formula for computating the circulation velocity profile at river bends