U型埋管周围温度场的边界元区域分解算法  

Application of Boundary Element—Domain Decomposition Method in Ground Temperature Field Around U-vertical Buried Pipe

作　　者：何媛媛[1] 李茂军[1] 马健军[1] 

机构地区：[1]重庆大学数理学院,重庆400030

出　　处：《重庆工学院学报（自然科学版）》2008年第9期28-31,共4页Journal of Chongqing Institute of Technology

基　　金：国家"十一五"科技支撑计划重大项目(2006BAJ02A09)

摘　　要：将U型垂直埋管地源热泵系统的稳态温度场分布归结为不同深度地层中分片常系数不连续介质的混合边值问题,应用基于边界元的非重叠型区域分解法把计算区域分解成2个子区域进行并行计算,在公共界面上满足温度和单位换热量的连续性.结果表明,对于土壤热源地下50m U型垂直埋管周围土壤的稳态温度场问题,其计算值与实验结果吻合良好,并进一步分析了不同土壤物性和不同回填材料对土壤温度分布的影响.The steady heat transfer problem of the soil temperature field around a vertical U-tube of ground source heat pump is an important field. This kind of problem can be described as discontinuous media problem with mixed boundary value which is solved by using boundary element - nonoverlapping and parallel domain decomposition method in this paper. The results meet well with the measurements. In addition, the influencing factors, such as soil property and backfill material which affect soil temperature field, is studied.

关 键 词：U型垂直埋管地热源热泵 边界元 非重叠型区域分解法 并行计算 

分 类 号：O241.82[理学—计算数学]