Recent Progresses and Challenges in High-Order Unstructured Grid Methods in CFD

Applied and Computational Mathematics Seminar
Monday, March 9, 2009 - 13:05
1.5 hours (actually 80 minutes)
Skiles 255
Aerospace Engineering, Iowa State University
The current breakthrough in computational fluid dynamics (CFD) is the emergence of unstructured grid based high-order (order > 2) methods. The leader is arguably the discontinuous Galerkin method, amongst several other methods including the multi-domain spectral, spectral volume (SV), and spectral difference (SD) methods. All these methods possess the following properties: k-exactness on arbitrary grids, and compactness, which is especially important for parallel computing. In this talk, recent progresses in the DG, SV, SD and a unified formulation called lifting collocation penalty will be presented. Numerical simulations with the SV and the SD methods will be presented. The talk will conclude with several remaining challenges in the research on high-order methods.