Something not clear for me in Jasak's thesys

Lam

Hi all,

I've read the thesys of Jasak.

And in the part 3.8, when he speaks about the semi-discretized form of the momentum equation, I wonder where the "laplacian(nu,Grad(U))" is.

Because, he says: a_p*U_p=H(U)-Grad(p), where H(U)=-sum[a_n*U_n]+U0/deltaT

and div(UU)=a_p*U_p + sum[a_n*U_n]

First I guess that laplacian(nu,Grad(U))=a_p * U_p + U0/deltaT

But I'm quite not sure. Hope that somebody can tell me where the laplacian(nu,Grad(U)) term is, in the discretized form.

Thanks in advance,

Lam