摘要
建立了土壤冻结过程数学模型及传热特性微分方程(温度模型),对土壤冻结时间进行数值模拟,采用有限差分法进行数值求解.用TDMA法上机计算并同实测值进行对比,论证了数学模型的正确性.认为用计算机数值分析方法进行冻结过程模拟,对实际工程的冻结工艺、冻结设施的优化设计具有实际意义.
The mathematical model based on temperature formulation for describing freezing course of soil has been presented and the explicit finite difference method was used to perform computer simulation of freezing time of soil in this paper. It seems to be satisfactory by comparing the numerical results by the method of TDMA with experimental data.It is significant for freezing process and freezing units, optimum design of practical engineering.
出处
《哈尔滨商业大学学报（自然科学版）》
CAS
2004年第4期492-495,共4页
Journal of Harbin University of Commerce：Natural Sciences Edition
关键词
土壤冻结
数学模型
冻结时间
TDMA法
数值模拟
传热
有限差分法
建筑基础
refrigeration and cryogenic engineering
soil Freezing
mathematical model
freezing time
tdma method
numerical simulation
experiment
