[1]江忠善,宋文经.坡面流速的试验研究[J].水土保持研究,1988,(01):46-52.
Jiang Zhongshan,Song Wenjing.An Experimental Study on the Velocity of Slope Flow[J].Research of Soil and Water Conservation,1988,(01):46-52.
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Jiang Zhongshan,Song Wenjing.An Experimental Study on the Velocity of Slope Flow[J].Research of Soil and Water Conservation,1988,(01):46-52.
坡面流速的试验研究
《水土保持研究》[ISSN:1005-3409/CN:61-1272/P]
卷:
期数:
1988年01期
页码:
46-52
栏目:
出版日期:
1900-01-01
- Title:
- An Experimental Study on the Velocity of Slope Flow
- 摘要:
- 本文首先对于现有各种坡面流速公式作一简单概述，进而简介坡面流速的试验布置。根据不稳定流计算理论，对试验资料进行了整理分析，得到下列的坡面流速公式：V=kq0.5I0.35式中：q——单宽流量（立方厘米/秒·米）；I——坡面的坡度比值；V——相应于q和I的坡面流速（厘米/秒）；k——系数。是随坡面的表面特征而异，在本试验裸地条件下k为2.0。然后，在试验给定的流态和公式的基础上，结合应用现有坡面流速公式，反求k值。按地表特征分类归纳，取其平均值为采用值。
- Abstract:
- This paper is based on the calculating theory of unsteady flow,an experiment was performed in a flume and obtained the following formula by analysising the experimental data. V=kq0.5I0.35 where q is the unit discharge(cm3/sec·m),I is the ratio of Slope gradient(m/m),V is the velocity of slope flow (cm/sec),and k is the coefficient of resistance of slope (see the table 3 in the paper). In this paper the author used the calculating method to determine the k value.First,under the known conditions of q and I to calculate the V by applying different formulas of the velocity of slope flow at home and abroad,second,using the formula given above to find the k value,finally,to classify the k value based on the same condition of feature of slope.
更新日期/Last Update:
1900-01-01