Un-smearing the Interface Every Step — Implementing Anti-Diffusion Sharpening (IST)
A post-processing technique that pins a numerically smeared interface to a constant thickness
Deleting an Equation Made It More Robust — The Four-Equation Model and the Interface Equilibrium Condition
How the four-equation multiphase model kills interface pressure oscillations
Giving Each Phase Its Own Equations — The Baer–Nunziato Seven-Equation Model
Structure of the non-equilibrium 7-equation model, its non-conservative terms, and the relaxation hierarchy
Why a Shout Above Water Never Reaches Below — Acoustics Across a Diffuse Interface
How an impedance jump reflects and refracts sound, reproduced with a weak-compressibility model
[Paper Review] Solve with Two Pressures, Merge to One — Saurel (2009) on Multiphase Pressure Relaxation
How a six-equation non-equilibrium model with stiff pressure relaxation routes around the failures of the five-equation diffuse-interface model.
5-Equation Model Implementation Guide: Building a Multiphase Flow Solver in Python
Directly implement a 5-equation diffuse interface model in Python and simulate a 1D shock-bubble interaction problem.
Interface Capturing Methods: VOF vs Level Set vs Diffuse Interface
Comparing the principles, pros/cons, and applications of three representative interface capturing techniques in compressible multiphase flows.