| 基于沙粒佛汝德数相似原理推算沙波河床上推移质输沙率 |
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| 引用本文： | 魏炳乾,孙小军,早川博.基于沙粒佛汝德数相似原理推算沙波河床上推移质输沙率[J].西北农林科技大学学报(社会科学版),2007,35(6):207-210. |
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| 作者姓名： | 魏炳乾 孙小军 早川博 |
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| 作者单位： | 1. 西安理工大学,教育部西北水资源与环境生态重点实验室,陕西,西安,710048
2. 北见工业大学,土木开发工学科,日本,北见,090-8507 |
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| 摘 要： | 基于沙粒佛汝德数相似原理,首先推导出利用模型试验结果估算原型沙波河床上推移质输沙率的推算公式;然后塑造与原型较为一致的床面形态,利用模型试验对推算公式进行了验证。结果表明,在保证原型与模型的粒径比尺较大,且模型与原型床面形态一致的条件下,运用该方法推算沙波河床上的推移质输沙率时,可以取得较为满意的结果。
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| 关 键 词： | 沙粒佛汝德数相似原理 推移质输沙率 沙波河床 模型试验 |
| 文章编号： | 1671-9387（2007）06-0207-04 |
| 收稿时间： | 8/1/2006 12:00:00 AM |
| 修稿时间： | 2006-08-01 |
Estimation of bed load transport rate based on grain Froude similarity considering the existence of sand waves |
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| WEI Bing-qian,SUN Xiao-jun,HIROSHI Hayakawa.Estimation of bed load transport rate based on grain Froude similarity considering the existence of sand waves[J].Journal of Northwest Sci-Tech Univ of Agr and,2007,35(6):207-210. |
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| Authors: | WEI Bing-qian SUN Xiao-jun HIROSHI Hayakawa |
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| Institution: | WEI Bing-qian1,SUN Xiao-jun1,HIROSHI Hayakawa2 (1 The Key Lab of Northwest Water Resource and Environment of MOE at XAUT,Xi’an,Shaanxi 710048,China; 2 Kitami Institute of Technology,Kitami 090-8507,Japan) |
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| Abstract: | It is very important for reservoir management to estimate the sedimentation amount deposited in a reservoir. In this sand waves of prototype paper, firstly, the formula for estimating the bed load transport rate in the bed of by model experiment based on the similarity of grain Froude number was inferred. Secondly, the bed forms similar to the prototype were built, and the formula was verified by using model experiment. Results showed when the ratio of grain diameter in the prototype and model was great enough, and the bed form in the model was similar to that in the prototype,a satisfactory result could be obtained by using the estimation formula to estimate the bed load transport rate of the sand wave bde. |
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| Keywords: | grain Froude similarity bed load transport rate sand wave bed model experiment |
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