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Using moving mesh to simulate fluid flow out the subtract
Posted 15 giu 2022, 08:27 GMT-4 Computational Fluid Dynamics (CFD), Modeling Tools & Definitions, Modeling Workflow Version 5.6 0 Replies
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Hi, I made a time-dependent coupled (ALE Moving mesh) cfd study.I want to simulate a fixed volume of liquid (let's say a rectangle) in 2D axisymmetric and place it in the center of the disk (not fully covered). The moving walls then make the fluid flow outward (r>0) on the disk. When fluid reaches the boundary of the disk, it flows out of the computational domain. Many boundary conditions are still unsuccessful. For example, if the fluid surface is set as a free surface, the fluid will flow infinitely outward. If one side of the fluid (the boundary of one side of the rectangle) is set as the outlet, It is not the original situation to be simulated. How to set the boundary conditions of the fluid surface? Thank you for your patience.
Hello Lun Lun
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