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A discrete error transport equation source model for mesh adaptation

52nd AIAA Aerospace Sciences Meeting - AIAA Science and Technology Forum and Exposition, SciTech 2014

Currier, Nicholas G.; Franko, Kenneth J.

Computational uid dynamics (CFD) is a powerful analysis tool for engineering anal- ysis of aerodynamic devices. Though great effort has been expended to assist the CFD practitioner in mesh generation efforts, investigation of spatial discretization error is still one of the primary time costs associated with field simulations. As complexity in both physics and geometry continues to increase, uniform grid refinement studies are not always practical from either a time or computational cost perspective. Error transport equations have been investigated by many researchers with the goal of providing greater confidence in simulation results while utilizing only a single mesh. One of the primary diffculties in applying these methods is the computation of a reliable error source model. This work presents a method for approximating these error sources with the intent of creating a gen- eral model which is applicable to all flux types within a general gas dynamics framework. Adaptivity results as well as comparison with a popular error source model are presented.

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TYPE Conference YEAR 2014
ScopusOSTI
11 Results
11 Results