The usage of Discontinuous Galerkin spectral techniques in the numerical simulatio...
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| Author(s): |
Total Authors: 3
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| Affiliation: | [1] CTA ITA IEC, Inst Tecnol Aeronaut, BR-12228900 Sao Jose Dos Campos, SP - Brazil
[2] CTA IAE ALA, Inst Aeronaut & Espaco, BR-12228903 Sao Jose Dos Campos, SP - Brazil
Total Affiliations: 2
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| Document type: | Journal article |
| Source: | Journal of the Brazilian Society of Mechanical Sciences and Engineering; v. 32, n. 5, SI, p. 419-433, DEC 2010. |
| Web of Science Citations: | 3 |
| Abstract | |
The present work implements the spectral finite volume scheme in a cell centered finite volume context for unstructured meshes. The 2-D Euler equations are considered to represent the flows of interest. The spatial discretization scheme is developed to achieve high resolution and computational efficiency for flow problems governed by hyperbolic conservation laws, including flow discontinuities. Such discontinuities are mainly shock waves in the aerodynamic studies of interest in the present paper. The entire reconstruction process is described in detail for the 2(nd) to 4(th) order schemes. Roe's flux difference splitting method is used as the numerical Riemann solver. Several applications are performed in order to assess the method capability compared to data available in the literature. The results obtained with the present method are also compared to those of essentially non-oscillatory and weighted essentially non-oscillatory high-order schemes. There is a good agreement with the comparison data and efficiency improvements have been observed. (AU) | |
| FAPESP's process: | 04/16064-9 - Mechanics of non-stationary fluids: applications in aeronautics and rheology |
| Grantee: | José Alberto Cuminato |
| Support type: | Research Projects - Thematic Grants |