摘要
本文应用非饱和多孔介质中传热传质的数学模型,考虑到作物根系和冠层的影响,对稳态情况下圆柱形士壤床中的水热分布进行了数值计算模拟。在不同环境条件下对土壤中的水热分布也进行了模拟计算。同时,在相同环境条件下对有作物覆盖的土壤床和无作物覆盖的土壤床中的水热分布也进行了模拟比较。文中数值模拟的结果较好地反映了实际情况。
A mathematical modal describing heat and mass transfer in unsaturated porous media is applied. With the consideration of root and crown of the plant, the numerical simulation is made to describe the heat and mass distribution under different environmental conditions in cylindrical vegetation soil-bed on steady state. The simulation is also made to describe the heat and mass distribution under the same environmental conditions between vegetation soil-bed and bare soil-bed. The result is reasonable.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2002年第4期464-466,共3页
Journal of Engineering Thermophysics
基金
国家重点基础研究发展规划资助项目(No.G2000026303)
国家自然科学基金资助项目(No.59976010)
教育部博士点基金资助项目(No.2000048731)
关键词
作物覆盖
热质
裸土
数值模拟
vegetation
heat and mass
bare soil
numerical simulation
