An analysis of parasitic current generation in volume of fluid simulations

Authors

  • D. J. E. Harvie
  • M. R. Davidson
  • M. Rudman

DOI:

https://doi.org/10.21914/anziamj.v46i0.952

Abstract

Parasitic currents are unphysical currents generated when using implementations of the Continuum Surface Force technique to model surface tension forces in multi-phase Computational Fluid Dynamics problems. We derive and validate a correlation for the magnitudes of these currents as a function of the physical and numerical parameters used in a given simulation. We find that these currents may be limited by both the inertial and viscous terms in the Navier--Stokes equations, and as observed by previous researchers, that they do not decrease in magnitude with increased mesh refinement nor decreased computational time step.

Published

2005-04-19

Issue

Section

Proceedings Computational Techniques and Applications Conference