[1]郑义津,李正农,涂文戈,等.树木对风沙流场影响的风洞试验研究[J].自然灾害学报,2020,29(06):107-116.[doi:10.13577/j.jnd.2020.0611]
 ZHENG Yijin,LI Zhengnong,TU Wenge,et al.Wind tunnel experiments on the influence of trees on wind-sand flow field[J].,2020,29(06):107-116.[doi:10.13577/j.jnd.2020.0611]
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树木对风沙流场影响的风洞试验研究
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《自然灾害学报》[ISSN:/CN:23-1324/X]

卷:
29
期数:
2020年06期
页码:
107-116
栏目:
出版日期:
2020-12-28

文章信息/Info

Title:
Wind tunnel experiments on the influence of trees on wind-sand flow field
作者:
郑义津1 李正农1 涂文戈1 蒲鸥1 黄斌2 宫博3
1. 湖南大学建筑安全与节能教育部重点实验室, 湖南 长沙 410082;
2. 海南大学 土木建筑工程学院, 海南 海口 570228;
3. 中国科学院太阳能热利用及光伏系统重点实验室, 北京 100190
Author(s):
ZHENG Yijin1 LI Zhengnong1 TU Wenge1 PU Ou1 HUANG Bin2 GONG Bo3
1. Key Laboratory of Building Safety and Energy Efficiency of the Ministry of Education, Hunan University, Changsha 410082, China;
2. College of Civil Engineering and Architecture, Hainan University, Haikou 570228, China;
3. Key Laboratory of Solar Thermal Utilization and Photovoltaic System of the Chinese Academy of Sciences, Beijing 100190, China
关键词:
树木风沙流场风洞试验
Keywords:
treewind-sand flowflow fieldwind tunnel test
分类号:
TU312;X43;X9
DOI:
10.13577/j.jnd.2020.0611
摘要:
本文以豆瓣黄杨苗为试验树,在边界层风沙风洞落沙条件下模拟沙尘暴气候,研究了树后的风沙流场特性,包括树木对风速、沙浓度和湍流度的影响规律。在风速12m/s下,通过控制不同落沙量形成各类风沙流场,测量三种树后间距处的风沙流场情况,并与无树时对比。结果表明:树后D=1H位置树冠以下(<0.2H)风速、沙浓度略有增大,树顶以上(>1H)风速、沙浓度基本无变化;树冠层高度(0.2H-1H)风速、沙浓度显著减小,树木中间位置(0.5H)减小比例最高,减小程度随落沙量的增加而增大,随树后间距的增加而减小;树木后风沙流场的湍流度有明显的增大,且树后各高度湍流度全部增大,增大程度变化规律与前两者的影响规律相似。研究结果将为树木防风阻沙提供科学依据。
Abstract:
In this paper, the buxus sinica are used as test trees to simulate the wind-sand flow field of sandstorm climate under the conditions of falling sand in the boundary layer wind tunnel. The characteristics of wind-sand flow field behind the trees are studied, including the distribution law of wind velocity, sand consistency and turbulence intensity. Under the wind speed of 12m/s, by controlling different sand falling amount to form various kinds of wind-sand flow fields, the wind-sand flow field at the three kinds of distance behind trees was measured and compared with the condition without tree. The results show that the wind speed and sand consistency under the canopy (<0.2H) behind the tree increase slightly, and there was basically no change above the tree top (> 1H); the wind speed and sand consistency in the canopy height (0.2H-1H) decrease significantly. The middle part of the tree (0.5H) has the highest reduction ratio, and the reduction degree increases with the increase of the amount of falling sand, and decreases with the increase of the distance behind the tree. The turbulence intensity behind the tree increases significantly, and the turbulence intensity increases at all heights behind the tree. The change law of the increase degree is similar to the influence of the former two. The research results will provide scientific basis for trees to prevent wind and sand.

参考文献/References:

[1] 周利芬, 吴红华, 李正农. 树木抗风及对风环境影响的研究综述[J]. 自然灾害学报, 2015, 24(5):199-206. ZHOU Lifen, WU Honghua, LI Zhengnong. Review of research on trees’ wind resistance and effectson wind environment[J]. Journal of Natural Disasters, 2015, 24(5):199-206. (in Chinese)
[2] Lee J P, Lee S J. PIV analysis on the shelter effect of a bank of real fir trees[J]. Journal of Wind Engineering and Industrial Aerodynamics, 2012, 110:40-49.
[3] 徐志. 周边树木对低矮房屋挡风性能的研究[D]. 北京交通大学, 2013. XU Zhi. Study on the Windbreak Performance of Trees on the Low-rise Buildings[D]. Beijing Jiaotong University, 2013.(in Chinese)
[4] BlockenB, Stathopoulos T, Carmeliet J, et al. Application of computational fluid dynamics in building performance simulation for the outdoor environment:an overview[J]. Journal of Building Performance Simulation, 2011, 4(2):157-184.
[5] 彭勇波, 艾晓秋, 承颖瑶. 风致树木倒伏研究进展[J]. 自然灾害学报, 2016, 25(5):167-175. PENG Yongbo, AI Xiaoqiu, CHENG Yingyao. Advances in research on wind-induced trees lodging[J]. Journal of Natural Disasters, 2016, 25(5):167-175. (in Chinese)
[6] 艾晓秋, 彭勇波, 承颖瑶. 城市行道树动力学特性与风致破坏分析[J]. 自然灾害学报, 2018, 27(1):27-32. AI Xiaoqiu, PENG Yongbo, CHENG Yingyao. Wind-induced failure and dynamical behaviors of urban trees[J]. Journal of Natural Disasters, 2018, 27(1):27-32. (in Chinese)
[7] 朱廷曜. 林带附近的风廓线[J]. 农业气象, 1983(3):43-47,54. ZHU Tingyao.The wind profile near the shelterbelt[J].Chinese Journal of Agrometeorology, 1983(3):43-47,54. (in Chinese)
[8] ManickathanL,Defraeye T, Allegrini J, et al. Comparative study of flow field and drag coefficient of model and small natural trees in a wind tunnel[J]. Urban Forestry & Urban Greening, 2018, 35:230-239.
[9] 何定颖, 李正农. 行道树风致响应的风洞试验研究[J]. 自然灾害学报, 2019, 28(3):44-53. HE Dingying, LI Zhengnong.Wind tunnel test on wind-induced responses of roadside trees[J]. Journal of Natural Disasters, 2019, 28(3):44-53. (in Chinese)
[10] Huang B, Li Z, Zhao Z, et al. Near-ground impurity-free wind and wind-driven sand of photovoltaic power stations in a desert area[J]. Journal of Wind Engineering and Industrial Aerodynamics, 2018, 179:483-502.
[11] 丛顺,李正农,宫博, 等.基于风洞试验的风沙两相流耦合流场特性[J/OL].土木与环境工程学报(中英文).http://kns.cnki,net/kcms/detail/50. 1218.TU.20191018.0951.002.html CONG Shun, LI Zhengnong, GONG Bo, et al. Coupling flow field characteristics of wind-sand two-phase flow based on wind tunnel test[J/OL]. Journal of Civil and Environmental Engineering.http://kns.cnki,net/kcms/detail/50.1218.TU.20191018.0951.002.html. (in Chinese)
[12] 丛顺, 李正农, 宫博, 等. 风扬沙环境下风沙流场风洞试验研究[J]. 建筑结构学报, 2019, 40(9):205-214. CONG Shun, LI Zhengnong, GONG Bo,et al. Wind tunnel test on wind-sand flow under blowing sand environment[J]. Journal of Building Structures, 2019, 40(9):205-214.(in Chinese)
[13] 程建军, 蒋富强, 杨印海, 等. 戈壁铁路沿线风沙灾害特征与挡风沙措施及功效研究[J]. 中国铁路科学, 2010, 31(5):15-20. CHENG Jianjun, JIANG Fuqiang, YANG Yinhai, et al. Study on the hazard characteristics of the drifting sand along the railway in gobi area and the efficacy of the control engineering measures[J]. China Railway Science, 2010, 31(5):15-20.(in Chinese)
[14] 丁录胜, 程建军, 陈柏羽, 等. 铁路高立式芦苇沙障防风阻沙的现场测试与流场模拟计算[J]. 水土保持通报, 2019, 39(3):156-162. DING Lusheng, CHENG Jianjun, CHEN Boyu, et al.Field test and numerical simulation of windbreak and sand-resisting on high-parallel reed sand-barriers along railway[J]. Bulletin of Soil and Water Conservation, 2019, 39(3):156-162.(in Chinese)
[15] 李雪琳, 马彦军, 马瑞, 等. 不同带宽的防风固沙林流场结构及防风效能风洞实验[J]. 中国沙漠, 2018, 38(5):936-944. LI Xuelin, MA Yanjun, MA Rui, et al. Wind flow field and windproof efficiency of shelterbelt in different width[J].Journal of Desert Research, 2018, 38(5):936-944(in Chinese)
[16] 张春来, 邹学勇, 刘玉璋, 等. 狮泉河盆地风沙灾害成因及其防治[J]. 自然灾害学报, 2006, 15(2):1-9. ZHANG Chunlai, ZOU Xueyong, LIU Yuzhang, et al. Cause of wind-blown sand disaster in Shiquanhe Basin and its control[J]. Journal of Natural Disasters, 2006, 15(2):1-9. (in Chinese)
[17] 董慧龙, 杨文斌, 王林和, 等. 单一行带式乔木固沙林内风速流场和防风效果风洞实验[J].干旱区资源与环境, 2009, 23(7):110-116. DONG Huilong, YANG Wenbin, WANG Linhe, et al. Windbreak effects and wind velocity flow field of one-line-shelter belt[J]. Journal of Arid Land Resources and Environment, 2009, 23(7):110-116.(in Chinese)
[18] 李正农, 王尚雨, 宫博, 等. 风沙对低矮建筑整体受力影响的风洞试验研究[J]. 土木工程学报, 2017, 50(1):63-69. LI Zhengnong, WANG Shangyu, GONG Bo, et al.Wind tunnel test for impact of wind-sand flow on overallforces of low-rise building[J]. China Civil Engineering Journal, 2017, 50(1):63-69.(in Chinese)
[19] 张鑫, 王海红, 王晨, 等. ImageJ软件测量白癜风白斑面积及与Photoshop的比较[J]. 实用皮肤病学杂志, 2017, 10(1):4-8. ZHANG Xin, WANG Haihong, WANG Chen, et al. The performance of Image J in measuring the area of vitiligo macule[J]. Journal of Practical Dermatology, 2017, 10(1):4-8.(in Chinese)
[20] 关德新, 朱廷曜. 树冠结构参数及附近风场特征的风洞模拟研究[J]. 应用生态学报, 2000, 11(2):202-204. GUAN Dexin, ZHU Tingyao. Wind tunnel experiment on canopy structural parameters of isolated tree and wind velocity field characters nearby[J]. Chinese Journal of Applied Ecology, 2000, 11(2):202-204.(in Chinese)
[21] Miller L A,Santhanakrishnan A, Jones S, et al. Reconfiguration and the reduction of vortex-induced vibrations in broad leaves[J]. Journal of Experimental Biology, 2012, 215(15):2716-2727.
[22] 邵传平, 朱园园. 鹅掌楸树叶在风中的变形与振动[J]. 力学学报, 2017, 49(2):431-440. SHAO Chuanping, ZHU Yuanyuan. The deformation and vibration of tulip leaves in wind[J]. Chinese Journal of Theoretical and Applied Mechanics, 2017, 49(2):431-440.(in Chinese)

相似文献/References:

[1]周利芬,吴红华,李正农.树木抗风及对风环境影响的研究综述[J].自然灾害学报,2015,24(05):199.[doi:10.13577/j.jnd.2015.0522]
 ZHOU Lifen,WU Honghua,LI Zhengnong.Review of research on trees’ wind resistance and effects on wind environment[J].,2015,24(06):199.[doi:10.13577/j.jnd.2015.0522]
[2]彭勇波,艾晓秋,承颖瑶.风致树木倒伏研究进展[J].自然灾害学报,2016,25(05):167.[doi:10.13577/j.jnd.2016.0520]
 PENG Yongbo,AI Xiaoqiu,CHENG Yingyao.Advances in research on wind-induced trees lodging[J].,2016,25(06):167.[doi:10.13577/j.jnd.2016.0520]

备注/Memo

备注/Memo:
收稿日期:2020-04-09;改回日期:2020-05-08。
基金项目:国家自然科学基金项目(51678233,52068019);海南大学科研启动基金资助项目(KYQD(ZR)20005)
作者简介:郑义津(1994-),男,硕士研究生,主要从事工程结构抗风研究.E-mail:yijinzheng@hnu.edu.cn
通讯作者:李正农(1962-),男,教授,博士,博士生导师,主要从事结构抗震抗风研究.E-mail:zhn88@263.net
更新日期/Last Update: 1900-01-01