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Boundary Variable not being Recognized
Posted 2014年9月26日 GMT-4 15:17 Modeling Tools & Definitions, Parameters, Variables, & Functions, Results & Visualization, Studies & Solvers Version 4.3a 0 Replies
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For a simple spherical particle, I am modeling the classical diffusion equation dc/dt + div(J) = 0 Where J is the flux defined as J = -D*grad(c) using a general form PDE. For the domain I am defining a domain variable D as a function of concentration c (i.e. D(Domain) = f(c)) and for the boundary that completely encloses the domain I define a boundary variable D as a constant value.
For additional information, I define a boundary flux "Jo" on the boundary as well.
When I solve this problem and plot intermediate "D" values, I find that D changes on the boundary which I did not expect to happen.
Can someone please give me some insight on what might be going on or what I am possibly doing wrong?
Hello Philip Clarke
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