南京大学学报（自然科学版）2011，Vol.47Issue(3)：299-307,9.
饱和介质中重非水相液体运移的数值模拟及敏感性分析
Numerical simulation of transportation of dense nonaqueous phase liquids in the subsurface environment
摘要
Abstract
This paper uses T2VOC code to simulate transportation of dense nonaqueous phase liquids (DNAPLs) in a saturated porous media.We take clay lenses embedded in a sand media as an example to compare the effects of clay lenses to DNAPLs transportation using the three-phase model of capillary pressure function (Parker model) or the two-phase van Genuchten function.Then we analyze the sensitivities of the parameters in the Parker model, in an attempt to reveal the most sensitive parameters controlling the transportations of DNAPLs.Our results show that different capillary pressure function affects the DNAPLs migration.The porous media arrests and blocks more DNAPLs when using the Parker model.The inlet pressure has a significant impact on the DNAPLs saturation in a heterogenous media.The sensitivity analysis shows the importance of the four parameters in the order is porosity＞n＞absolute permeability＞a(nw).关键词
重非水相液体/T2VOC/敏感性/毛管压力/Parker模型/van Genuchten函数Key words
dense nonaqueous phase liquids/ T2VOC Program/ sensitivity analysis/ capillary pressure function/Parker model/ van Genuchten分类
天文与地球科学引用本文复制引用
施小清,吴吉春,刘德朋,江思泯,孙媛媛,徐红霞..饱和介质中重非水相液体运移的数值模拟及敏感性分析[J].南京大学学报（自然科学版）,2011,47(3):299-307,9.基金项目
国家自然科学基金(40702037,40725010,41030746),污染控制与资源化研究国家重点实验室开放基金(PCRRF09015) （40702037,40725010,41030746）
