Recent content by taktoa

There are a couple of papers on achieving this with the smoothed particle hydrodynamics method, but they don't talk about the actual PDE that these methods solve: https://www.dankoschier.de/resources/papers/WKBB18.pdf http://app.spheric-sph.org/sites/spheric/files/Spheric_Book.pdf...

Well, I was thinking you could consider separate instances of NS with different viscosities in a grid, and then take the limit as the grid size goes to zero. You'd obviously also need boundary conditions that enforce continuity between the NS instances. I have no idea how to get a sensible PDE...

Does anyone know of a differential equation, similar to Navier-Stokes, that encompasses incompressible fluid flow with spatially varying viscosity? Viscosity is treated as a global constant in NS; I've found some papers online that address NS with viscosity as a function of velocity, but I can't...