Coupling mechanics between LBM-DEM

What is the approach used for coupling lbm and dem in the lbm-dem code? Can you perhaps point out the paper it is based on?

Good references for the coupled LBM-DEM approach:

Great. Thanks.

What I understand is that for the fluid-particle interaction you use the no-slip boundary condition with the approach presented by Iglberger et al. (2008) to account for the movement of the grains. So in simple words, when going from individual LBM and DEM simulations to coupled LBM-DEM two modifications are made: 1. the distribution functions are adjusted at the boundaries, and 2. hydrodynamic forces and torques are applied to the grains. Is that correct?

You pointed out this paper to me a few days ago:


in which they include different types of forces for the fluid-particle interaction, such as drag force, lift force, added mass force and lubrication force. Does the hydrodynamic force used in Iglberger’s approach actually represent all these forces?

We don’t have to apply additional lubrication force, this is useful, but we don’t have to do this now.