Benchmark solutions for the incompressible Navier–Stokes equations in general co‐ordinates on staggered grids

Benchmark problems are solved with the steady incompressible Navier–Stokes equations discretized with a finite volume method in general curvilinear co‐ordinates on a staggered grid. The problems solved are skewed driven cavity problems, recently proposed as non‐orthogonal grid benchmark problems. The system of discretized equations is solved efficiently with a non‐linear multigrid algorithm, in which a robust line smoother is implemented. Furthermore, another benchmark problem is introduced and solved in which a 90° change in grid line direction occurs.