MASSIVELY PARALLEL FINITE ELEMENT COMPUTING FOR AEROTHERMAL APPLICATIONS

Youssef Mesri (1, 2) , Alban Bazile , Elie Hachem

1 Mines Paris - PSL (École nationale supérieure des mines de Paris)
2 CEMEF - Centre de Mise en Forme des Matériaux

The present work focuses on the methods and algorithms that underlie the high-fidelity analysis of Aerothermal problems. Solving such problems involves the coupling of unsteady Navier-Stokes equations and the heat transfer equation on complex geometries. The multiscale nature of the problem, the complexity of the geometry and the unsteadiness of the flow lead to a large-scale problem requiring a large amount of parallel resources. We propose in this work a parallel adaptive finite element scheme that adapts the mesh dynamically with respect to the multiscale variation of the solution. The finite element solution is used to drive the mesh adaptation in a fully parallel way. The proposed framework is used here to run a 3D complex jet impingement cooling system. The computation was executed over more than thousand cores for two weeks.

Mots clés: Parallel mesh adaptation; Parallel Finite element solvers; Massively parallel; Aerothermal applications

Domaines: Calcul parallèle, distribué et partagé [cs.DC]; Modélisation et simulation

Youssef Mesri, Alban Bazile, Elie Hachem. MASSIVELY PARALLEL FINITE ELEMENT COMPUTING FOR AEROTHERMAL APPLICATIONS. International conference on parallel computational fluid dynamics (ParCFD), May 2019, Antalya, Turkey. ⟨hal-03102705⟩