%0 Journal Article
%T Large eddy simulation of turbulent flow in the forest canopy and the forest boundary layer.<br>森林冠层和森林边界层大涡模拟
%A MIAO Shi-Guang
%A JIANG Wei-Mei
%A <br>苗世光
%A 蒋维楣
%J 地球物理学报
%D 2004
%I 
%X Based on a large eddy simulation (LES) model with anisotropy subgrid scale closure model and an explicit multi-stage third-order Runge-Kutta scheme, the drag term on momentum, the heat source term and the production term of turbulent kinetic energy (TKE) imposed by the canopy elements are introduced to the LES equations to simulate the meteorological field in the forest canopy and the forest boundary layer. The analysis of simulation results and the comparison with observational data show that the LES model simulates the turbulent flow in forest canopy and forest boundary layer very well. Further research indicates that, under unstable stratification, the turbulent structure of Kinking and Pairing in the dense forest canopy, together with the large eddy structure in forest boundary layer, forms the temperature ramp near the forest canopy.
%K Forest canopy
%K Forest boundary layer
%K Large eddy simulation
%K Temperature ramp
%K Turbulent structure of Kinking & Pairing<br>森林冠层
%K 森林边界层
%K 大涡模拟
%K 温度斜坡型结构
%K Kinking＆Pairing
%K 湍涡结构
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=1E44AE713D8A6DE0&jid=14DC41C59CBF6770055A7D610D53AE46&aid=FE9F15D8083FD91D&yid=D0E58B75BFD8E51C&vid=F4B561950EE1D31A&iid=E158A972A605785F&sid=0A8675156EB60B87&eid=70E3F4DEB0172F14&journal_id=0001-5733&journal_name=地球物理学报&referenced_num=2&reference_num=10