北京师范大学学报（自然科学版）Issue(5)：527-532,6.DOI:10.16360/j.cnki.jbnuns.2015.05.016
裂隙岩体渗流及污染物迁移模型的数值模拟研究∗
Modeling fluid flow and tracer transport in fractured rock by the effective continuum method
摘要
Abstract
Flow transport in fracture media is different from that in porous media due to anisotropy of fracture rocks.Available methods for treatment of fracture media include discrete fracture and matrix model, dual-continua method,and effective continuum method.Advantages and disadvantages of these methods are presented,and modeling studies for fluid flow and tracer transport in a field site with fractured rock are performed.The site of study is a small island in eastern China.A steady-state flow field with current climate condition is simulated using a simplified conceptual model of the flow system, which submits to mass conservation and Darcy’s Law.Result of the steady-state flow field is then used in further tracer transport simulations.It is found that adsorption is the most significant factor of transport.With higher infiltration,the tracer tends to reach the boundary with lower concentration.Because higher the infiltration,broader the tracer spreads.Accidentally inj ecting tracer near the fracture area may cause serious pollution.Tracer will quickly spread along the fault with boarder plume and higher concentration.In addition,a portion of the tracer will reach the surface.Therefore,it is necessary to pay close attention to water near faults.关键词
裂隙/等效连续介质法/数值模拟/污染物迁移Key words
fracture/effective continuum method/numerical simulation/tracer transport分类
资源环境引用本文复制引用
王笑雨,张可霓,李毅..裂隙岩体渗流及污染物迁移模型的数值模拟研究∗[J].北京师范大学学报（自然科学版）,2015,(5):527-532,6.基金项目
能源科技发展项目专项基金资助项目(NY20111102-1) （NY20111102-1）
