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.
FDM vs FEM vs FVM: The Essential Differences Between Three Discretization Techniques
·8 min read
FDM discretizes the operator, FEM projects onto a basis, and FVM balances face fluxes. That choice fixes conservation, shocks, and unstructured meshes.
Numerical Dungeon: Learn Numerical Methods Through a Game
·4 min read
Three HP, five stages: the quiz runs from the CFL condition through Godunov limiters and Riemann problems to Abgrall's multiphase pressure fix.
From the Riemann Problem to Godunov's Scheme - The Essence of Numerical Flux
·4 min read
Godunov flux comes from p* in a two-constant Riemann problem. Shock branches use a square-root f_K; rarefactions use an isentropic power.