CUNHA CALDEIRA MESQUITA, Léo (2015) Mesh adaptation for Large Eddy Simulation of combustion chambers flows PFE - Project Graduation, ENSTA.



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.

Item Type:Thesis (PFE - Project Graduation)
Subjects:Mathematics and Applications
Fluid Mechanics and Energy
ID Code:6587
Deposited By:Léo Cunha Caldeira Mesquita
Deposited On:25 mai 2016 14:49
Dernière modification:25 mai 2016 14:49

Repository Staff Only: item control page