| 不同结构的尼龙网和塑料网防沙效应研究 |
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| 引用本文： | 张克存,屈建军,俎瑞平,方海燕. 不同结构的尼龙网和塑料网防沙效应研究[J]. 中国沙漠, 2005, 25(4): 483-487 |
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| 作者姓名： | 张克存 屈建军 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： | 中国科学院知识创新工程重要方向项目(KZCX3SW341)，所知识创新项目(2004105)共同资助 |
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| 摘 要： | 通过不同结构的尼龙网和塑料网对风沙流减弱作用的风洞实验研究,旨在为探求各种防沙新材料的防护功能,并为防沙新材料的开发、野外工程防沙的优化设计及其应用提供理论依据。笔者在前人研究的基础上,以平均净阻沙率、网后平均输沙率和风沙流动态变化趋势为参考指标,初步证实了尼龙网和塑料网与常规的防沙材料,在防沙功能上具有同等的作用,且当孔隙度β在40%左右时防护效益最佳。
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| 关 键 词： | 尼龙网和塑料网 风沙流 风洞模拟 |
| 文章编号： | 1000-694X(2005)04-0483-05 |
| 收稿时间： | 2004-01-10 |
| 修稿时间： | 2004-01-10 |
Simulation on Abated Effect of Nylon and Plastic Nets with Different Structure on Wind-blown Sand in Wind Tunnel |
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| ZHANG Ke-cun,QU Jian-jun,ZU Rui-ping,FANG Hai-yan. Simulation on Abated Effect of Nylon and Plastic Nets with Different Structure on Wind-blown Sand in Wind Tunnel[J]. ournal of Desert Research, 2005, 25(4): 483-487 |
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| Authors: | ZHANG Ke-cun QU Jian-jun ZU Rui-ping FANG Hai-yan |
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| Affiliation: | Key Laboratory of Desert and Desertification, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China |
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| Abstract: | Through simulations on abated effect of nylon and plastic nets with different structure on wind-blown sand in wind tunnel, the aim of this paper is to provide a theoretic base for optimized design of blown sand engineering in the field and a new sand-defending material application. According to mean sand transporting rate, mean net sand blocking rate and dynamic changing trend of wind-sand stream behind net, the fence of porosity β=40% was found to have a good shelter effect for abating wind-blown sand particles. Therefore, it confirmed that nylon and plastic nets have the same defending function, compared with other routine sand-defending materials. |
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| Keywords: | Nylon and plostic net wind-blown sand wind tunnel simulation |
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