双排尼龙阻沙网-草方格联合沙障防风效应的风洞实验  

Wind tunnel experiment on windproof effect of double-row nylon sand-blocking net-grass square combination

作　　者：王茂林 宋玲[1] 刘杰 王云飞 Maolin Wang;Ling Song;Jie Liu;Yunfei Wang(College of Water Conservancy&Architectural Engineering,Shihezi University,Shihezi 832003,Xinjiang,China;Xinjiang Transportation Planning,Survey and Design Institute Co.Ltd,Urumqi 830000,China;CCCC Third Highway Engineering CO.LTD,Wuhan 430056,China)

机构地区：[1]石河子大学水利建筑工程学院,新疆石河子832003 [2]新疆交通规划勘察设计研究院有限公司,新疆乌鲁木齐830000 [3]中交第三公路工程局有限公司,湖北武汉430056

出　　处：《中国沙漠》2024年第3期9-17,共9页Journal of Desert Research

基　　金：交通运输行业科技项目(2022-ZD-007);新疆交通运输厅科技项目(KY2020050701)。

摘　　要：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、14 m·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。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 better,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%porosity double-row nylon sand-blocking net-grass square grid be used in combination with practical applications to obtain the best wind protection effect.

关 键 词：双排尼龙阻沙网 草方格 防风效应 风洞模拟 

分 类 号：X169[环境科学与工程—环境科学]