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设计了一套研究多孔介质中非混相指进的实验方法,提出触发混相与非混相流体指进的系统因素。研究了指进的统计自相似性、混沌特性及分形描述方法,并与DLA模型对比解释流体饱和度等宏观概念。提出拟波及系数、临界流体饱和度等新概念;应用重正化群理论推导了均匀孔隙介质中流体饱和度与拟波及系数的关系。可用以建立宏观非混相指进模拟的数值模型。
A set of experimental methods for studying non-miscible fingering in porous media was designed, and the systematic factors that triggered fingering of mixed phase and non-miscible phase fluids were proposed. The statistical self-similarity, chaos characteristic and fractal description method of fingering are studied, and macroscopic concepts such as fluid saturation are compared with DLA model. Proposed a new concept of pseudo-wave and coefficient, critical fluid saturation and so on. The relationship between fluid saturation and wave number and coefficient in homogeneous porous media was deduced by renormalization group theory. Can be used to establish a numerical model of macroscopic immiscible fingering simulation.