首页|双排尼龙阻沙网-草方格联合沙障防风效应的风洞实验

双排尼龙阻沙网-草方格联合沙障防风效应的风洞实验

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为了解双排尼龙阻沙网-草方格联合沙障的防风效应,进行孔隙度为40%、45%、55%的双排尼龙阻沙网-草方格联合沙障风洞实验,研究在6、10、14m·s-1等3种风速下的风速加速率等值线、防风效能和风速廓线指标.结果表明:(1)在不同风速条件下,双排尼龙阻沙网-草方格联合沙障防风效应随着来流风速增大而明显降低;(2)40%孔隙度双排尼龙阻沙网-草方格联合沙障防风效应较好,而45%孔隙度时防风效应较差,55%孔隙度防风效应最差;(3)双排尼龙阻沙网-草方格联合沙障在防风效应方面存在累加.因此,建议在实际应用中采用40%孔隙度双排尼龙阻沙网-草方格联合沙障,以获得最佳防风效应.
Wind tunnel experiment on windproof effect of double-row nylon sand-blocking net-grass square combination
To study the windproof effect of double-row nylon sand-blocking net-grass square combination,wind tunnel experiments of double-row nylon sand-blocking net-grass square lattice with porosity of 40%,45%,and 55%were carried out,and the contours of wind acceleration rate,windproof efficacy,and wind contour indexes were investigated under the three kinds of wind speeds,namely,6,10 m·s-1 and 14 m·s-1.The results show that:(1)Under different wind speed conditions,the windproof effect of double-row nylon sand-blocking net-grass combination decreases significantly with the increase of the incoming wind speed.(2)The windproof effect of the combined use of double-row nylon sand-blocking net-grass squares using a porosity of 40%is relatively bet-ter,whereas the windproof effect is relatively poorer when using a porosity of 45%,and the worst is found in the case of the windproof effect of porosity of 55%.(3)There is a cumulation of windproof effects in the combined application of double-row nylon sand-blocking net-grass squares.Therefore,it is recommended that a 40%poros-ity double-row nylon sand-blocking net-grass square grid be used in combination with practical applications to obtain the best wind protection effect.

double-row nylon sand-blocking netgrass squarewindproof effectwind tunnel simulation

王茂林、宋玲、刘杰、王云飞

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石河子大学水利建筑工程学院,新疆石河子 832003

新疆交通规划勘察设计研究院有限公司,新疆乌鲁木齐 830000

中交第三公路工程局有限公司,湖北武汉 430056

双排尼龙阻沙网 草方格 防风效应 风洞模拟

交通运输行业科技项目新疆交通运输厅科技项目

2022-ZD-007KY2020050701

2024

中国沙漠
中国科学院寒区旱区环境与工程研究所

中国沙漠

CSTPCD北大核心
影响因子:1.504
ISSN:1000-694X
年,卷(期):2024.44(3)
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