| 主权项 |
1. A method of simulation of moving interfaces using geometry-aware volume-of-Fluid method, the method comprising steps for:
representing two different fluid volumes in a domain using a level set surface on a grid mesh comprising a plurality of cells; representing an interface with a zero contour of a level set function; modeling two phase flow dynamics of the two different fluid volumes using a viscous incompressible Navier-Stokes equations with surface tension; updating incompressible velocity field of the domain by computing a velocity advection term in a conservative manner, performing a velocity diffusion implicitly, performing a pressure projection with surface tension, and applying a pressure difference to make an intermediate velocity incompressible; updating the interface using the incompressible velocity field by updating a volume fraction of each cell in a conservative manner, moving the level set interface using a semi-Lagrangian method, correcting a resulting level set interface according to the volume fraction, and performing redistancing of the level set; and displaying the updated interface of the two fluid volumes on a display, wherein the level set values are stored in refined sub-grids, wherein in order to correct level set values in a cell to be consistent with the volume fraction a sub-cell volume element is generated and used. |
