摘要
本文对土壤中水、汽、热运动的耦合型数值模型用室内蒸发试验进行了验证,与等温模型相比,耦合模型能够更确切地反映温度变化条件下的土壤水分运动规律,文中讨论了低含水率土壤蒸发时蒸发而下移的情况,以及温度、温度梯度对土壤水、汽运动的影响。
A coupled numerical model,physically based on formulation of water-vapor-heat transport in saturated-unsaturated soil,is tested by evaporation experiment in laboratory. Compared with the result of isothermal model, the result of the coupled numerical model is more close to the experimental data. The movement of evaporation front and the effect of soil temperature upon water-vapor transport in soil are discussed.
出处
《水利学报》
EI
CSCD
北大核心
1991年第11期1-8,共8页
Journal of Hydraulic Engineering
基金
水利水电科学基金
