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boundary conditions of level set equation

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Old   September 17, 2008, 02:31
Default boundary conditions of level set equation
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Reza
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Hello

I am starting to write a simple code with level set method by constant external speed.

but I do not know, what boundary condition shuold I use?

thanks
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Old   September 17, 2008, 06:32
Default Re: boundary conditions of level set equation
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jinwon park
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Simple interpolation --> Constant interpolation or linear interpolation. See Fedkiw's papers.
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Old   September 17, 2008, 18:15
Default Re: boundary conditions of level set equation
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Reza
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Which Fedkiw's paper does explain these boundary conditions?

How can I use simple or constant interpolation for

boundary conditions of level set equation?

what about periodic or extrapolating boundary condition?

thanks.
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Old   September 17, 2008, 18:37
Default Re: boundary conditions of level set equation
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jinwon park
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The title begins with "non-oscillatroy ...". Need to google.
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Old   September 20, 2008, 03:50
Default Re: boundary conditions of level set equation
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Reza
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I red this paper, but I donot know, what boundary condition can I use for edges of my computational grids? this paper has used ghost fluid method for zero level set funtion, not for edges of computational grids. what can I do?

thanks

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Old   April 29, 2016, 15:05
Default Is your problem solved?
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HVR Mittal
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Hi,

I am also using level set evolution to track moving interfaces. I am using one sided higher order differences to discretise derivative of \phi. Though, I am able to capture the interface at later times but there are garbage values at boundaries. Could anybody suggest how to discretise the gradient of \phi at the boundaries.

Thanks
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