Closed RequieMa closed 10 months ago
Do you mean the two last terms on the LHS of the first equation (The one relating to the laplace operator and the gradient of the pressure)? We have used integration by parts on both of them, thus a sign flip.
Hi @jorgensd,
Thanks for your reply. I understand the two last terms on the LHS of the first equation now. I should have noticed that.
Then how about the RHS? Shouldn't it be minus once it is put to left?
Sure, But f
is Zero in this tutorial, so it doesn’t really matter wrt the sign
Hi,
I am confused by the sign of the Navier-Stokes equation test problem 2.
It seems that the code flips the sign for this two lines. What happens?