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- Title
High-Order CFD Solvers on Three-Dimensional Unstructured Meshes: Parallel Implementation of RKDG Method with WENO Limiter and Momentum Sources.
- Authors
Pei, Weicheng; Jiang, Yuyan; Li, Shu
- Abstract
In aerospace engineering, high-order computational fluid dynamics (CFD) solvers suitable for three-dimensional unstructured meshes are less developed than expected. The Runge–Kutta discontinuous Galerkin (RKDG) finite element method with compact weighted essentially non-oscillatory (WENO) limiters is one of the candidates, which might give high-order solutions on unstructured meshes. In this article, we provide an efficient parallel implementation of this method for simulating inviscid compressible flows. The implemented solvers are tested on lower-dimensional model problems and real three-dimensional engineering problems. Results of lower-dimensional problems validate the correctness and accuracy of these solvers. The capability of capturing complex flow structures even on coarse meshes is shown in the results of three-dimensional applications. For solving problems containing rotary wings, an unsteady momentum source model is incorporated into the solvers. Such a finite element/momentum source hybrid method eliminates the reliance on advanced mesh techniques, which might provide an efficient tool for studying rotorcraft aerodynamics.
- Subjects
COMPUTATIONAL fluid dynamics; COMPRESSIBLE flow; INVISCID flow; FINITE element method; AEROSPACE engineers; AEROSPACE engineering
- Publication
Aerospace (MDPI Publishing), 2022, Vol 9, Issue 7, p372
- ISSN
2226-4310
- Publication type
Article
- DOI
10.3390/aerospace9070372