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COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Validation of a Limiting Methodology for High-Order Methods
Submission Author:
Marco Aurélio Leonel Matunaga , SP , Brazil
Co-Authors:
Fábio Malacco Moreira, João Luiz F. Azevedo, Marco Aurélio Leonel Matunaga
Presenter: Marco Aurélio Leonel Matunaga
doi://10.26678/ABCM.COBEM2017.COB17-1038
Abstract
High-order methods are interesting to the CFD community due to their increased solution accuracy at comparable costs. One of the major concerns in the application of these numerical schemes is the degradation of the numerical solution by flow discontinuities, such as shock waves. Thus, for simulating high speed compressible flows it is necessary to introduce a mechanism to handle these numerical instabilities. In the present paper, the authors evaluate a new limiting technique, recently proposed for the CPR method, adapting it to the Spectral Difference method. The proposed limiter is studied through its applications to both standard high-order CFD validation test cases and traditional aeronautical flows. It is expected that new limiter can provide improved convergence properties while preserving the smoothness of the solution.
Keywords
CFD, High-order methods, Limiters, Transonic Flow, Aerodynamics
