[1]唐朝胜,刘世洪*,程杰仁,等. 基于数值模拟的橡胶防护林防风效应探讨[J].西北林学院学报,2017,32(2):79-83.[doi:10.3969/j.issn.1001-7461.2017.02.13]
 TANG Chao-sheng,LIU Shi-hong*,CHENG Jie-ren,et al. Study on Windbreak Effect of Rubber and Protection Forest Based on Numerical Simulation[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2017,32(2):79-83.[doi:10.3969/j.issn.1001-7461.2017.02.13]
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 基于数值模拟的橡胶防护林防风效应探讨()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第32卷
期数:
2017年第2期
页码:
79-83
栏目:
出版日期:
2017-03-31

文章信息/Info

Title:
 Study on Windbreak Effect of Rubber and Protection Forest Based on Numerical Simulation
文章编号:
1001-7461(2017)02-0079-05
作者:
 唐朝胜12刘世洪1*程杰仁2邱育毅2
 (1.中国农业科学院 农业信息研究所,北京 100081;2.海南大学,海南 海口 570228)
Author(s):
 TANG Chao-sheng12LIU Shi-hong1*CHENG Jie-ren2QIU Yu-yi2
 (1.Institute of Chinese Academy of Agricultural Information,Beijing 100081,China; 2.Hainan University,Haikou,Hainan 570228,China)
关键词:
 橡胶防护林防风效应数值模拟
Keywords:
 rubber protection forest windbreak effect numerical simulation
分类号:
S727.29
DOI:
10.3969/j.issn.1001-7461.2017.02.13
文献标志码:
A
摘要:
 针对影响防风效应的多种因素, 对大风绕橡胶及防护林带的流场进行数值模拟。将林带视为符合空气动力特性的多孔介质模型,通过分析林带内部结构对绕林流场的影响,构建林带二维模型。在k-ε控制方程的基础上,对相关参数进行修正,借助CFD软件模拟了大风绕林后的流场。比较了2种流场中的沿流相对风速的变化,并对模拟进行了验证分析。结果表明,3种树高下的防护林带后的防护距离差别不明显,且树越高,承受的风压越大;相比通风型林带,紧密型和疏透型林带防护效果更好。这也为橡胶及防护林的矮化密植提供试验依据。
Abstract:
 According to the factors affecting the windbreak effect,the flow field around rubber plantations and shelterbelts were simulated.Firstly,the forest was regarded as porous medium model with aerodynamic characteristics.Through the analysis of the internal structure of the belt to influence around the forest field,two-dimensional model was built.Secondly based on the k-ε equations,the relevant parameters were amended,and the wind flow field around the forest was simulated with CFD software.Finally,the changes of relative wind velocity along the flow in two kinds of flow field and the simulation were compared.The results showed that the differences of protection distance in the three tree heights of shelterbelt were not significant,and the higher a tree was,the more pressure suffered.Compared to the ventilation type belt,the protection effect of close type and sparse through type forest were better.The results would provide an experimental basis for rubber plantation and protection forest dwarfing and close planting.

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备注/Memo

备注/Memo:
 收稿日期:2016-08-20修回日期:2016-10-11
基金项目:国家自然科学基金项目(61363071);海南省自然科学基金(20156247,20156246)。
作者简介:唐朝胜,男,在读博士,副教授,研究方向:作物信息、数值模拟。E-mail:tcsjk@163.com
*通信作者:刘世洪,男,博士生导师,研究员,研究方向:计算机农业应用、农业信息标准。E-mail:liushihong@caas.cn
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