土体渗流-切向水流相互作用机理分析  

Mechanism Analysis of Interactions Between Seepage and Tangential Flow

作　　者：谢立全[1] 刘曙光[1] 

机构地区：[1]同济大学水利工程系,上海200092

出　　处：《同济大学学报（自然科学版）》2010年第7期982-985,1022,共5页Journal of Tongji University:Natural Science

基　　金："十一五"国家科技支撑计划重大资助项目(2008BAJ08B14);科技部科技基础性工作专项重点资助项目(2007FY110300-03);国家自然科学基金资助项目(50979071);同济大学光华基金资助项目

摘　　要：在切向水流-土体渗流相互作用试验基础上,结合Fluent软件数值模拟,对比验证和分析了切向水流-土体渗流相互作用规律和内在机理.结果表明,数值模拟与试验结果吻合良好,切向水流对土体渗流的影响明显;切向水流条件不变时,渗流通道出口的压力场与流态随着渗流速度的变化而改变,且渗流速度越大,土体透水系数越大.Based on experimental results and simulations with software Fluent,the interactions between seepage and tangential flow were investigated,and the results of experiments and simulations agreed well.Results show that the flow obviously affects the seepage in the sand soil.For the same tangential flow,the pressure fields and streamlines change with the seepage velocity,and the seepage conductivity increases with the increasing seepage velocity.

关 键 词：渗流 切向水流 相互作用 机理 

分 类 号：TV139.16[水利工程—水力学及河流动力学]