École Nationale Supérieure de
Techniques Avancées

Abstract

Large Eddy Simulation (LES) being the most promising CFD method for industrial combustion chambers demands highly efficient numerical algorithms and sufficiently refined meshes to limit the undesired effects of modeling. Because of this mesh constraints, this works proposes an automatic solution based mesh adaptation program: ADAM, made in order to introduce mesh adaptation to the AVBP code, improving solution and reducing LES computational cost. For this, the adaptation methodology relying on metrics and on an Hessian error estimator developed by Alauzet[1] and also the sensors proposed by Majewski et al.[16, 15] were studied, analyzed and implemented. Academic and aeronautical combustion chamber representative test cases were used, where mesh adaptation results were promising, specially the Hessian based sensors in the IMFT’s swirler experiment, where it could correctly identify refinement/coarsening zones. Simulations over the adapted meshes to validate the methodology are yet to be performed.