Three-dimensional flows over backward facing steps

Three-dimensional flows over backward facing steps ave analysed by means of a finite element procedure, which shares many features with the SIMPLER me thod In fact, given an initial or guessed velocity field, the pseudovelocit ies, i.e. the velocities that would prevail in the absence of the pressure field, are found first. Then, by enforcing continuity on the pseudovelocity field, the tentative pressure is estimated, and the momentum equations ave solved in sequence for velocity components. Afterwards, continuity is enfo rced again to find corrections that are used to modify the velocity field a nd the estimated pressure field Finally, whenever necessary the energy equa tion is solved before moving to the next step.