摘要
More and more experimental results show that Darcy’s law is not fully applicable in low permeability media,and non-Darcy flow has been identified.In this paper we reviewed the research of non-Darcy flow experiments in low-permeability media in recent decades,discuss the existence of non-Darcy flow,and summarize its constitutive equations.The reasons for the threshold gradient were also discussed and summarized for the criterion of the critical point of non-Darcy flow.On this basis,the future development of non-Darcy flow experiments in the rock and clay media were discussed,in order to provide a certain reference for subsequent research on seepage laws in low permeability media.
基金
This study was supported by Natural Science Foundation of Hubei Province of China(No.2018CFB258)
State Key Laboratory of Groundwater Protection and Utilization of Coal Mining(SHJT-17-42.9)
College Student Innovation Project of Yangtze University(No.2019428 and No.2019422).
