摘要
基于多孔介质流体动力学与多组分分子扩散理论,以菲克定律为物理模型,结合质量守恒定律,建立岩溶地区土壤CO2 运移的数值模型。在确定的边界条件下,模拟土壤CO2的运移过程。模拟结果与实测结果一致,表明数值模型基本正确,为进一步 探讨岩溶地区土壤CO2与大气CO2的关系打下了良好的基础。
Based on the theory of fluid dynamics and the theory of multi-component molecular diffusion in porous media, a physical model was produced from the Pick' s Law, then a mathematical model of soil CO2 transference in the karst area by combining with mass balance equation has been established. Based on the specified boundary conditions to simulate the process of soil CO2 transference, The results of simulation were as same as real measurement, and showed that the mathematical model is correct, which laid a good foundation for further study on relationship between atmospheric CO2 and soil CO2 in the karst area.
出处
《上海环境科学》
CAS
CSSCI
CSCD
北大核心
2002年第12期712-715,共4页
Shanghai Environmental Sciences
基金
国家自然科学基金(编号:49703048)和环境地球化学国家重点实验室开放基金联合资助
