A new method of boundary treatment in Heat conduction problems with finite element method

摘要：

In regards to the defect of respectively handling three conditions, this paper puts forward a new unified expression fitting for different boundary conditions. It also obtains the parameter values of expression in different boundary conditions. Take the infinite square cylinder putting into cold liquor as an example, it works out a program using the improved new boundary treatment to simulate cylinder temperature field. This paper gets distributions of temperature field at four different times. The results of simulation not only meet the physical situation, but also have high precision compared with the theoretical solutions. Since being easy to deal with complex boundary conditions, the new way makes the FEM useful again in engineering calculation and research.

关键词： finite element method boundary treatment square cylinder unsteady temperature field

作者: Yueping QIN Hongbo LIU Yanhui ZHANG Chuan QIN Shengzhu ZHANG

作者单位: China University of Mining & Technology (Beijing), Beijing 100083, China

会议类型: 国际会议

会议名称: The First International Symposium on Mine Safety Science and Engineering (首届矿山安全科学与工程学术会议)

会议地点: 北京

会议语种:英文

页码: 695-700

在线出版日期: 2011-10-27（万方平台首次上网日期，不代表论文的发表时间）