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A Variational Multi-Scale Anisotropic Mesh Adaptation Scheme for Aerothermal Problems

  • Youssef MesriEmail author
  • Alban Bazile
  • Elie Hachem
Chapter
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Part of the Lecture Notes in Computational Science and Engineering book series (LNCSE, volume 132)

Abstract

We propose a new mesh adaptation technique to solve the thermal problem of the impingement jet cooling. It relies on a subscales error estimator computed with bubble functions to locate and evaluate the PDE-dependent approximation error. Then, a new metric tensor \(\mathcal {H}_{aniso}^{\,\,new}\) based on the subscales error estimator is suggested for anisotropic mesh adaptation. We combine the coarse scales anisotropic interpolation error indicator with the subscales error estimator allowing us to take into account the anisotropic variations of the solution but also the sub-grid information. The results show that the resulting meshes of this parallel adaptive framework allow to capture the turbulently generated flow specificities of the impingement jet cooling and in particular, the secondary vortexes.

Keywords

Mesh adaption technique Impingement jet cooling VMS error estimator Navier–Stokes equations Heat transfer equations 

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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  1. 1.MINES ParisTech, PSL - Research UniversityCEMEF - Centre for Material Forming, CNRS UMR 7635Sophia-Antipolis CedexFrance

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