The heat transfer coefficient of convection 對流傳熱系數的研究
Influence of some parameters are analyzed , such as : d ( diffusion rates ) , v ( coefficient of convection ) . double or three compartments model of soc is used . it is found that the diffusion process for different compartments of organic carbon in soil is very differently . this model could also calculated the accumulation of soc in soil per year , which is helpful to understand the dynamic process of organic carbon storage in soil 最后一章本論文對新老有機碳在土壤當中的遷移積累進行了數值模擬,分析了不同參數對有機碳擴散的影響,得到了不同年齡的有機碳在土壤中的分布規律,這為進一步預估中國土壤中的有機碳動態變化打下了基礎。