摘要
根据带相变瞬态温度场问题的热量平衡控制微分方程 ,应用伽辽金法推导出有限元计算公式。通过对一寒区隧道在不同施工季节、不同初始条件以及不同保温材料厚度和导热系数的温度场分析 ,得出了一些有意义的结论和规律 。
In this paper, based on the governing differential equations of the problem of temperature field with phase change, the finite element formulae of this problem are obtained from Galerkin's method. An illustrative example of the temperature field for tunnel in cold region in different construction season, different initial temperature condition, different thickness and thermal conductivity of insulation material is provided, then some significant results are presented, which can provide reference for actual engineering design in cold regions.
出处
《铁道学报》
EI
CAS
CSCD
北大核心
2002年第4期92-96,共5页
Journal of the China Railway Society
基金
国家自然科学基金项目 (40 1 71 0 1 9)
中国科学院"百人计划"资助项目 (A类 )
