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Developing a FVBFE method on moving unstructured hybrid grid to simulate ice accretion

Darbandi, M ; Sharif University of Technology | 2012

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  1. Type of Document: Article
  2. DOI: doi/abs/10.2514/6.2012-3184
  3. Publisher: 2012
  4. Abstract:
  5. In this study, a moving mesh finite-volume-based finite-element (FVBFE) method is suitably extended to simulate the effect of supercooled liquid water droplet content on ice formation and growth on wing sections. The method benefits from the advantages of both finite-volume and finiteelement methods, which promote achieving a more accurate solution and a higher efficient procedure in ice accretion calculations. The method solves the time-dependent Navier-Stokes (NS) equations on unstructured hybrid grid distributions. In this method, the convection terms are approximated at the cell faces using a physical influence upwinding scheme. We also use linear spring approach to move the hybrid mesh. The NS equations are further coupled with the second phase Eulerian equations to approximate the droplet catching efficiency parameter distribution. Using this parameter, we can readily determine the effect of this parameter on ice formation at the solid surfaces subject to icing condition. Eventually, we test the extended method and simulate ice accretion on the face of an airfoil subject to icing condition
  6. Keywords:
  7. Supercooled liquid water ; Efficiency parameters ; Hybrid meshes ; Ice accretion ; Ice formations ; Icing conditions ; Eulerian equations ; Unstructured hybrid grids ; Drops ; Ice ; Navier Stokes equations ; Finite element method
  8. Source: 43rd AIAA Thermophysics Conference 2012 ; 2012 ; 9781624101861 (ISBN)
  9. URL: http://arc.aiaa.org/doi/abs/10.2514/6.2012-3184