Saving Gradients on Unstructured Grids — Moving Least-Squares Approximation
·5 min read
A local polynomial fit that recovers both values and derivatives from scattered points
SPH Without Tears — Solving Fluids with Particles, from Kernel to Artificial Viscosity
·5 min read
How Smoothed Particle Hydrodynamics replaces grids with particles — equations, code, traps.