摘要
本文以我国广泛分布的冻土为背景,对冻结条件下非饱和土壤水、热耦合运移问题进行了研究。探讨了冻结过程中土壤的冻结特性,建立了土壤水、热耦合运移的数学模型,并用有限差分法对土壤冻结过程进行了数值模拟计算。经试验验证,本文所采用的数学模型及数值计算方法是合理的、可信的。在此基础上,讨论了土壤冻结过程的一般规律。
This paper deals with the problem of coupled heat and moisture transfer during soil freezing.After studying the characteristics of soil freezing^ the authors propose a mathematical model.A specially designed experiment is conducted to verify the model.It is found that the test results agree well with the theoretical prediction based on the proposed model and solved by finite difference method for the boundary conditions used in the experiment.
出处
《水利学报》
EI
CSCD
北大核心
1992年第7期1-8,共8页
Journal of Hydraulic Engineering
基金
国家自然科学基金
