回融过程中土壤水热耦合迁移的数值模拟  

Numerical Simulation of Coupled Water and Heat Migration of Soil Water during Melting Process

作　　者：刘畅 陈晓飞[2] 付默菡 郑重 

机构地区：[1]锦州市市政工程设计研究院有限公司,辽宁锦州121000 [2]沈阳农业大学水利学院,辽宁沈阳110161 [3]锦州市水利工程建设管理局,辽宁锦州121001

出　　处：《水电能源科学》2011年第9期115-118,220,共5页Water Resources and Power

基　　金：国家自然科学基金资助项目(40272102)

摘　　要：针对冻土回融过程的不利影响,以沈阳市土壤为例,基于冻土水热耦合迁移的数学模型,采用中心差分格式线性化迭代法求解,对现场土壤回融过程进行了数值模拟,并与试验结果进行了对比。结果表明,模拟中所采用的参数、数学模型及计算方法合理、有效。According to the negative effect of frozen soil melting process,taking the soil in Shenyang City for an example,the in-site soil melting process is simulated with the mathematical model of coupled water and heat migration,which is solved by using central difference format linear iteration method.Compared with the experimental results,it shows that the parameters,mathematical model and calculation method for simulation are reasonable and effective.

关 键 词：水热耦合迁移 数值模拟 回融过程 土壤水 

分 类 号：S152.9[农业科学—土壤学] TP391.9[农业科学—农业基础科学]