Vreteno simulates movement of particles in viscous fluid flows under the influence of hydrodynamic and magnetic forces. The particles are moving due to the action of gravity, buoyancy, drag, pressure gradient and added mass forces. When the fluid flows through the area of a non-uniform external magnetostatic field, the resulting magnetophoretic force working on the particles is also considered. Numerical simulation of dilute suspensions is the main target of this work, thus the coupling between the two phases is a one-way action of the fluid on the particles.

It was written by Jure Ravnik, University of Maribor, Faculty of Mechanical Engineering, Smetanova 17, SI-2000, Maribor, Slovenia.

Numerical aspects of the algorithm are explained in the following papers:

J. Ravnik and M Hribersek: High gradient magnetic particle separation in viscous flows by 3D BEM. Comput. mech., Online First, 24 May 2012, doi: 10.1007/s00466-012-0729-3

J. Ravnik, L. Skerget, M. Hribersek and Z. Zunic: Numerical simulation of dilute particle laden flows by wavelet BEM-FEM, Comput. Meth. Appl. Mech. Engrg., vol 197/6-8, pp. 789-805, 2008 10.1016/j.cma.2007.09.007

Source code, documentation and examples are available for download:

Vreteno, version 1.7.1, August 2012