| 沙土含水率对起沙临界风速影响 |
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| 引用本文： | 包为民. 沙土含水率对起沙临界风速影响[J]. 中国沙漠, 1996, 16(3): 315-318 |
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| 作者姓名： | 包为民 |
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| 作者单位： | 河海大学水资源水文系 |
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| 摘 要： | 根据重力、凝聚力与拖曳力的力矩平衡关系，推导出起沙临界风速与粒径和沙土含水率的关系，并分析了含水率对起沙临界风速的定量作用
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| 关 键 词： | 沙土含水率 起沙临界风速 |
ANALYSIS OF THE EFFECTS OF SAND MOISTURE ON THE THRESHOLD WIND VELOCITY |
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| Bao Weimin. ANALYSIS OF THE EFFECTS OF SAND MOISTURE ON THE THRESHOLD WIND VELOCITY[J]. ournal of Desert Research, 1996, 16(3): 315-318 |
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| Authors: | Bao Weimin |
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| Abstract: | Bagnold developed the formula of thresholdwind velocity by neglecting the action of cohesive force.This usually caused a large errors since there exists big difference from its real conditions.This paper develops a relation of the threshold wind velocity to grain diameter and sand moisture volume percentage on the basis of the momentary balance of force of gravity,cohesion and drag force,and analyzes quantitatively the effects of sand moisture volume percentage on the threshold wind velocity. |
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| Keywords: | Sand moisture volume percentage Threshold wind velocity Quantitative analysis |
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