Using Mantaflow to simulate granular particles?

Support Particles and Physics Simulations
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While playing around with the new Mantaflow engine, I realized I could skip the mesh generation step, and instead just set the particles to display as tiny spheres, simulating something like sand.

The problem is, Mantaflow only seems to simulate/keep the surface particles, and not the particles inside the volume of the fluid. Is there any way to tell Mantaflow to keep the inside particles? Being able to use the somewhat stable and fast Mantaflow over the Molecular addon would be a godsend

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I’m curious about this too–also working with a sand wind blowing gag.

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Small update: Had some success by turning up the “bandwidth,” option under the fluid particle settings, but it seems to make the particles a little crazier in certain other parts of the simulation. I’ll definitely have to play around with it more