西北林学院学报2017，Vol.32Issue(2)：79-83,5.DOI:10.3969/j.issn.1001-7461.2017.02.13
基于数值模拟的橡胶防护林防风效应探讨
Study on Windbreak Effect of Rubber and Protection Forest Based on Numerical Simulation
摘要
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 thek-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.关键词
橡胶/防护林/防风效应/数值模拟Key words
rubber/protection forest/windbreak effect/numerical simulation分类
农业科技引用本文复制引用
唐朝胜,刘世洪,程杰仁,邱育毅..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):79-83,5.基金项目
国家自然科学基金项目(61363071) （61363071）
海南省自然科学基金(20156247,20156246). （20156247,20156246）
