Changing One Relaxation Factor Moved the Converged Solution — Where Rhie–Chow Face Velocities Remember Under-Relaxation
·7 min read
In SIMPLE, cutting α_u from 0.7 to 0.3 changes the converged velocity. Standard Rhie–Chow keeps α_u on the damping term; Majumdar's face store removes it.
When Pressure Rings in a Checkerboard — SIMPLE and Rhie-Chow Coupling
·6 min read
On a 48-cell periodic line the naive stencil keeps a checkerboard of 0.80, while Rhie-Chow drives the same sawtooth down to 3.1e-16.
Rhie-Chow Interpolation for Compressible Multiphase Flows
·11 min read
At a water-air density ratio of 1000, the arithmetic mean density is 500.5 and the harmonic mean is 2.0. Filter only the driving pressure.