Level Set Method and Immersed Interface Method
Dear all,
I am a master course student who is currently doing research using Immersed Interface Method and Level Set Method. Now, I am trying to represent my surface with signed distance function. I can calculate the minimum distance easily, but I don't know how to determine whether the grid point is inside or outside of the surface. I have searched about the method but usually they gave me a simple example like circle which can be represented with exact function. Specifically, I want to know how to get the initial level set function with discrete surface control points. Is there anyone who can help me? Jun |
Hi,
In the level set method the distance function is a signed function. If it is positive you are in fluid 1 (inside the surface), if it is negative you are in fluid 2 (outside the surface). Of course it depends on the way you initialized this function according what is for you inside or outside or (fluid1 or fluid 2). Leflix |
There is a variety of methods. The basic one uses raytracing, but you need a smart data structure for your surface. What method do you use for your distance calculation? There are chances that you can use that with a simple check to also determine the side.
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