Fri, 18 Jun Anders Logg wrote: > 3. Is the normal flux + or - grad(u).n? I think of it as -grad(u).n.
For k*inner(grad(u), grad(v))*dx, -k*grad(u).n is the right flux. It has a minus sign. Some people use the word flux for grad(u).n, but that's sloppy - normal derivative is then better. Hans Petter _______________________________________________ Mailing list: https://launchpad.net/~fenics Post to : [email protected] Unsubscribe : https://launchpad.net/~fenics More help : https://help.launchpad.net/ListHelp
