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İmplementing a (heat) equation on COMSOL
Posted Jul 24, 2015, 8:54 a.m. EDT Heat Transfer & Phase Change, Modeling Tools & Definitions, Parameters, Variables, & Functions, Studies & Solvers Version 5.0 0 Replies
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İve been trying to learn COMSOL since last week.İam trying to implement heat equation solved with Crank-Nicolson scheme.İ think i succeeded in doing that but nothing happens.İ put the equation in the file.İ made an İnterval from Geomerty and its 0 to 30 m(because my depth is 30m)To implement it to COMSOL i opened a Coefficient form PDE from Physics and i selected time dependant.İ defined my parameters.
At the Coefficient form PDE 1 section here are the values for the equation from Coefficient form PDE .
c=lambda(i introduced it from parameters its an equation for thermal diffisuvity)(thermal difusivity is lambda on the equation i give in the file)
a=0
f=0
ea=0
da=1
β=0
ϒ=0
α=0
i think when i write these it should be like the equation(in the file) im trying to make COMSOL solve.
İ did these and made time range(0,0.1,100)
When i compute nothing shows on the graph im trying to find how heat change according to time with depth.İt would be big help to say the wrong thing im doing here.
Lamda is =k/(rho*c)
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Hello Hakan Tarık Meriç
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