Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
520804 | Journal of Computational Physics | 2011 | 11 Pages |
Abstract
A method to simulate bodies suspended in a Lattice Boltzmann solvent is proposed. It is based on a generalized reaction force that enforces no-slip boundary conditions at the fluid–body interface as the limiting case of an iterative procedure. A smooth version of the Heaviside function allows to treat spherical particles of arbitrary size and produces smooth hydrodynamic forces as particles move in the continuum. Numerical tests demonstrate the accuracy of the method in reproducing the hydrodynamic field around a single particle and the fluid-mediated forces between pairs of particles. The drag force experienced by a particle moving in a straight channel and at various Reynolds numbers is studied as a non-trivial testcase.
Related Topics
Physical Sciences and Engineering
Computer Science
Computer Science Applications
Authors
Simone Melchionna,