- **Main CFD Forum**
(*http://www.cfd-online.com/Forums/main/*)

- - **Incompressible Navier-Stokes / channel / BC**
(*http://www.cfd-online.com/Forums/main/108866-incompressible-navier-stokes-channel-bc.html*)

Incompressible Navier-Stokes / channel / BCHello,
The Chorin's algorithm to solve the incompressible Navier-Stokes equations has three steps: 1- velocity prediction: u_i 2- pressure computation: p 3- velocity correction: u . Using a finite element method to solve the problem, the weak formulation of equation 2- may be written as: if p_n is the pressure computed at a previous step, we seek for a pressure p that verifies int_Omega grad(p).grad(phi) dx = int_Omega grad(p_n).grad(phi) dx + int_OmegaBoundary grad(p_n).normal phi ds + (1/Delta(t)) int_Omega div(u_i) phi dx where phi is a test function. I am wondering what are the right boundary conditions for the pressure equation ? |

All times are GMT -4. The time now is 15:20. |