All the main settings in the OpenFOAM fvSchemes file explained briefly, along with my personal rules of thumb for which settings to use. Don't take these rules of thumb as law - they're just what worked for me. YMMV.
Main tip: if your sim crashes, it might be your fvSchemes. Try using more stable (but less accurate) schemes.
fvSchemes guide: github.com/niklebedenko/Tutor...
Prerequisites
---------------------
Khan Academy Multivariable Calculus course (Partial derivatives, Gradient, Divergence, Laplacian etc): www.khanacademy.org/math/mult...
Navier-Stokes equation derivation: • Description and Deriva...
Extra Info
---------------
OpenFOAM fvSchemes User Guide: cfd.direct/openfoam/user-guid...
Green-Gauss gradient scheme: • [CFD] Green-Gauss Cell...
Least Squares gradient scheme: • [CFD] Least-Squares Gr...
Mesh Non-Orthogonality: • [CFD] What is Mesh Non...
OpenFOAM divergence scheme comparison: www.openfoam.com/documentatio...
Chapters:
00:00 Intro
00:52 General Guide
01:08 ddtSchemes
01:42 gradSchemes
02:16 divSchemes
03:22 snGradSchemes
03:57 laplacianSchemes
04:21 interpolationSchemes
04:35 Outro
Негізгі бет OpenFOAM fvSchemes explained in under 5 mins
Пікірлер: 24