Short Note: On reducing interface curvature computation errors in the height function technique

  • Authors:
  • J. López;J. Hernández

  • Affiliations:
  • Dept. de Ingeniería de Materiales y Fabricación, ETSII, Universidad Politécnica de Cartagena, E-30202 Cartagena, Spain;Dept. de Mecánica, ETSII, UNED, E-28040 Madrid, Spain

  • Venue:
  • Journal of Computational Physics
  • Year:
  • 2010

Quantified Score

Hi-index 31.45

Visualization

Abstract

A detailed analysis of the errors involved in computing the interface curvature from volume fraction distributions using a height function technique is presented. An improved version of the height function technique is proposed, based on introducing a correction of the height function discretization error estimated from the local osculating spheres at interface points. By using this error correction and an appropriate discretization of the partial derivatives of the height function, a substantial improvement in the accuracy of the interface curvature computation can be efficiently achieved.