hello, I meet some trouble in problem definition.
problem order(fi,dfi)=int2d(th1)(dfialphafi/M)
-int2d(th1)(dfidpfi(rawf*(cl-ci)(setaf1log(setaf1/273.15)-setaf1+seff))
+int2d(th1)(dfidpfirawf*(sl-si)seff(setaf1-seff)/seff)
//+int2d(th1)(dfidpfigfi*(rawi-rawl)W)
// -int2d(th1)(dfiWdgfidpfi)
// +int2d(th1)(dfidpfipre1*(rawl-rawi))
and the software tell me that the code after “//” are wrong. The error is
It seems non-linear problem. So first linearize it using Newtons method.
It is given here.
https://doc.freefem.org/tutorials/navierStokesNewton.html
Also, if possible mention the governing equation.
the governing equation is like below,
your gov PDE is too big but I can say, few terms of your problem are in non-linear form.
So, first, linearize them using Newton’s method then only you can solve it.
Few links will help you in linearization process:
you mean to linearlize it and get a weak form? I get the equation from an article and it provides the weak form like below,
and I wrote the code based on the weak form.
