Dear All, I have a couple of general questions regarding pressure in 1p model. If the simulation is driven by a pressure drop, can the pressure be bigger than the pressure inlet? Moreover, can pressure go negative? I have some interesting results that I would like to share. Please find attached a spead sheet with results from four simulations. For each simulation, I have a 50x50x50 box, with permeability heterogeneities on a cell-by-cell basis. For simplicity, I have some cells defined with one perm, and all other cells defined with another perm. The flow is driven by a pressure gradient (pin=130000, pout=100000) at the two boundaries in X direction. I got four simulations by varying the difference between the two perms. At the end of each simulation, I compute average pressure on the YZ planes, along X axis, which gives me one average pressure distribution curve. When the perm difference is 1 order of magnitude, the average pressure drops linearly. When the perm diference is 2 or 3 order of magnitude, we can see average pressure increase dramatically. Does this make any sense to some of you? Best, -Shawn
mixture-permDiff-study.xlsx
Description: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
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