viscous fingering

The computer simulation of fractal viscous fingering have been studied to various two-dimension porous media.

对各种不同的二 维 孔隙介质,给出了其分形粘滞指进的计算机模拟.

We propose a DLA viscous fingering model based on pressure gradient. The model, which is called pressure-guided rule, combines geometric space and pressure gradient. We investigate the DLA walking problem of particles in pore space and simulate the viscous fingering development process.

提出了基于压力梯度的DLA指进模拟方法，通过定义几何空间和压力梯度结合的压力导向行走规则，研究了粒子在岩心孔隙空间的DLA行走问题，模拟了粘性指进的发展过程。

The result shows that viscosity difference between fluids is intrinsic factor that causes viscous fingering and porous media heterogeneity is extrinsic factor.

分析结果认为，流体间的粘度差是产生粘性指进的内在因素，多孔介质的非均质性是诱发粘性指进现象的外在因素。