%0 Journal Article
%T An Application of the Mass-Lumped Finite Element Method to an Unsaturated Soil Water Flow Problem<br>有限元集中质量法在非饱和土壤水流中的应用
%A Xie Zhenghui
%A Zeng Qingcun
%A Dai Yongjiu
%A Wang Bin
%A <br>谢正辉
%A 曾庆存
%A 戴永久
%A 王 斌
%J 气候与环境研究
%D 1998
%I 
%X A numerical model for an unsaturated flow problem by using finite element method is established in order to simulate liquid moisture flow in an unsaturated zone with homogeneous soil and deep subsurface water, and with different initial and boundary conditions. For infiltration or evaporation problems, a traditional method usually yields oscillatory non-physics profiles. However, we obtain nonoscillatory solutions and evade non-physics solutions for these problems by using the mass-lumped finite element method, Moreover, the kind of boundary conditions is handled very well.
%K unsaturated flow
%K finite element mass lumping
%K numerical simulation<br>非饱和土壤水流
%K 有限元集中质量法
%K 数值模拟
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=28A2F569B2458C17&jid=484C10BAB5333C14751916EACFF8295F&aid=D01C70A9ECDCB17661ED48C7E61FA4F8&yid=8CAA3A429E3EA654&vid=38B194292C032A66&iid=CA4FD0336C81A37A&sid=B9704B40A4225A24&eid=35FC3610259C2B32&journal_id=1006-9585&journal_name=气候与环境研究&referenced_num=0&reference_num=0