[msrinath80]

1. Why is there a limit of 501 iterations on the AMG and 5001 on the ICCG solvers? Is this is a known and fixed constraint?

2. For non-conformal structured block meshes, does increasing the number of non-orthogonal correctors really help? What is the ballpark percentage limit (as reported by checkMesh) beyond which non-orthogonal correctors are absolutely necessary. Is it 25%, 50%, 75% ??

3. In the lid-driven cavity case, dirichlet boundary conditions are prescribed for the stationary walls. Quoting from F & P:

"At a wall the no-slip boundary condition applies, i.e. the velocity of the fluid is equal to the wall velocity, a Dirichlet boundary condition. However, there is another condition that can be directly imposed in a FV method; the normal viscous stress is zero at a wall."

Is this implicitly done in the OF solvers? If that is the case, then the zero value dirichlet boundary conditions specified in the subdirectory 0/U should apply to the continuity equation?

Please excuse my naiveness. Any thoughts/corrections are much appreciated. Thanks!