二维排水位移的粘性稳定性
Viscous stabilization of 2D drainage displacements with trapping
摘要：
我们研究了稳定机制，由于粘性力在入侵前在排水位移在二维多孔介质中使用网络模拟器。我们发现，在水平位移的毛细管压力差的两个不同的点之间沿着前面几乎线性变化的函数的高度分离的方向上的位移。数值结果支持的论点，考虑到无环位移模式，非润湿流体在单独的股（路径）流动。因此，我们表明，现有的理论开发的粘性稳定，是不兼容的排水时，无环股占主导地位的位移过程。
英文摘要：
We investigate the stabilization mechanisms due to viscous forces in the invasion front during drainage displacement in two-dimensional porous media using a network simulator. We find that in horizontal displacement the capillary pressure difference between two different points along the front varies almost linearly as function of height separation in the direction of the displacement. The numerical result supports arguments taking into account the loopless displacement pattern where nonwetting fluid flow in separate strands (paths). As a consequence, we show that existing theories developed for viscous stabilization, are not compatible with drainage when loopless strands dominate the displacement process.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
