| 风沙流中风速脉动对输沙量的影响 |
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| 引用本文： | 张克存,屈建军,董治宝,俎瑞平,方海燕.风沙流中风速脉动对输沙量的影响[J].中国沙漠,2006,26(3):336-340. |
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| 作者姓名： | 张克存 屈建军 董治宝 俎瑞平 方海燕 |
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| 作者单位： | 中国科学院寒区旱区环境与工程研究所,沙漠与沙漠化重点实验室,甘肃,兰州,730000 |
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| 基金项目： | 中国科学院资助项目;中国科学院知识创新工程项目;中国科学院知识创新工程项目 |
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| 摘 要： | 通过对不同工程措施下风沙流中风速脉动特征与输沙量波动研究发现：不同孔隙度栅栏中各高度层瞬时风速的波动性具有很好的相关性，而且相邻高度之间的相关性非常显著。在不同风速下，典型工程措施中同一高度层输沙量具有相对应的变化特征；瞬时风速的波动性主要与其所在高度层沙粒的运动状态和工程效益有关。
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| 关 键 词： | 风沙流 风速脉动 输沙量 |
| 文章编号： | 1000-694X（2006）03-0336-05 |
| 收稿时间： | 2005-01-04 |
| 修稿时间： | 2005-04-22 |
Effect of Wind Speed Fluctuation on Sand Transport Rate |
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| ZHANG Ke-cun,QU Jian-jun,DONG Zhi-bao,ZU Rui-ping,FANG Hai-yan.Effect of Wind Speed Fluctuation on Sand Transport Rate[J].Journal of Desert Research,2006,26(3):336-340. |
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| Authors: | ZHANG Ke-cun QU Jian-jun DONG Zhi-bao ZU Rui-ping FANG Hai-yan |
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| Institution: | Key Laboratory of Desert and Desertification ,Cold and Arid Regions Environmental and Engimeering Research Institute,Chinese Academy of Sciences,Lanzhou 730000,China |
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| Abstract: | Study on relation of wind speed fluctuation with sand transport rate was conducted in wind tunnel under condition of different engineering measures.The fluctuating characteristics of instantaneous wind speed with time are well correlative between different heights in sand barriers,especially between neighboring heights.As the space between different heights increases,the synchronism of instantaneous wind speed fluctuation presents a decreasing degree.The fluctuating amplitude of instantaneous wind speed is closely related to both the character of underlying surface and the motion state of sand grain and sand transport. |
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| Keywords: | sand flow wind speed fluctuation sand transport |
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