{"id":52351,"date":"2021-02-17T23:06:52","date_gmt":"2021-02-17T23:06:52","guid":{"rendered":"\/forum\/forums\/topic\/boundary-conditions-to-simulate-volume-blockage-within-the-macroscopic-particle-model-mpm\/"},"modified":"2021-02-17T23:06:52","modified_gmt":"2021-02-17T23:06:52","slug":"boundary-conditions-to-simulate-volume-blockage-within-the-macroscopic-particle-model-mpm","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/boundary-conditions-to-simulate-volume-blockage-within-the-macroscopic-particle-model-mpm\/","title":{"rendered":"Boundary conditions to simulate volume blockage within the macroscopic particle model (MPM)?"},"content":{"rendered":"
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I am modelling the blockage\/sealing of a 'leak' within a water pipe using the insertion of elastomer particles into the pipe, which the find their way to the leak and 'plug' it. To do so, I am employing the macroscopic particle model (MPM), given that I have come across multiple descriptions of it being able to account for the blockage of fluid volume (I've seen images in guides published by Ansys showing its use to simulate the blocking of filter elements). A pressure differential between the inside of the pipe (which is at 2 bar gauge – assigned as a boundary condition to the main\/larger pipe outlet) and leak\/atmosphere (assigned as 0 bar to the second, smaller outlet) 'attracts' the particle towards the leak. An image of my simulation so far can be seen below, with a 6mm diameter particle being forced into the vicinity of the 5mm circular leak:<\/p>\n

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