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June 11, 2013, 15:27 |
bratu's problem implementation
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#1 |
Member
shiv
Join Date: Jun 2012
Location: Lucknow, IN
Posts: 51
Rep Power: 13 |
Hi all,
I am trying to solve the equation laplacian(T) + constant1*exp(T/(1+constant2*T))=0 using the laplacianFoam solver but i am not sure how to implement the non-linear part. thou i have tried this: I took taylor expansion of exp() and took terms till 2nd order and implemented this eqn. fvm::ddt(T) - fvm::laplacian(DT, T) - zhi == - fvm::Sp(fvzhi*(2+mag(fvc::Sp(1+2*nu, T)))/(2*magSqr(1+mag(fvc::Sp(nu, T)))), T) Please let me if it can be done other way. |
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