Why Droplet Simulations Get Trapped by Δt — Solving Surface Tension Implicitly
Reproducing Janodet 2025, which breaks the capillary time-step shackle with implicit surface tension
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
[Paper Review] Second-Order Accuracy in a Single Stage — A GRP Solver for the Kapila Multiphase Model
How a GRP solver buys second-order time accuracy and tames the stiff volume-fraction source at once
Why Droplets Are Round and Water Climbs the Glass — Surface Tension and Contact Angle
From the physics of surface tension to contact angle and the CSF model in CFD
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] Two-Phase Flow Without a Poisson Solver — Coupling the General Pressure Equation with MSTACS
Swap the elliptic Poisson step for a hyperbolic GPE and run two-phase flow fully explicitly
Water Boils at 20°C Too — The Physics of Cavitation
How depressurization makes water boil, the cavitation number, and the 10,000-bar collapse.
SPH Without Tears — Solving Fluids with Particles, from Kernel to Artificial Viscosity
How Smoothed Particle Hydrodynamics replaces grids with particles — equations, code, traps.
Rhie-Chow Interpolation for Compressible Multiphase Flows
From the checkerboard problem on collocated grids to balanced-force multiphase flows, we systematically summarize the mathematical essence and OpenFOAM implementation of Rhie-Chow interpolation.
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.
Compressible Multiphase Flow CFD: Why It's Hard, Why It Matters
Why compressible multiphase numerics differ fundamentally from single-phase flow, and why this remains an active research field.