Hello everyone,
I am trying to solve an heat diffusion equation which has a non linear source term. when i am trying to compile it is showing the linear combination error (error operator ( <10LinearCombI7MGauche4C_F0E>, ). I have attached the problem statement along with this message. Thanks for looking into this
Regards,
Change pow(dx(T),2) to dx(T)*dx(T) may solve it.
Hii,
I have tried that still it’s not working,
Thanks
Sorry that I made a mistake. Actually, such expression creates a tri-linear term, which is not valid in FreeFEM. You can replace T by Tp, and Tp is T in the previous step:
dx(Tp)*dx(T)*v//LHS
or
dx(Tp)*dx(Tp)*v//RHS