Projection method: B.C. for intermediate velocity field
 

Hello,

I'm trying to solve the variable density and viscosity Navier-Stokes using lagged-pressure projection method on a collocated grid.

What is the boundary condition on the intermediate velocity field (U*) that we obtain which not divergence free?

I see a lot of confusion about correct B.C. in the literature also I could not find good source which specifies the correct source of B.C. If anyone can point me to correct literature, that would be great help.

Thank you

As I worked on this topic, you can find some infos here:

http://onlinelibrary.wiley.com/doi/1...d.598/abstract
http://onlinelibrary.wiley.com/doi/1...d.520/abstract
http://onlinelibrary.wiley.com/doi/1...d.965/abstract

double post: http://scicomp.stackexchange.com/que...velocity-field