RANS Simulation using the Spectral Volume Scheme on Unstructured Tetrahedral Grids
نویسندگان
چکیده
منابع مشابه
A spectral volume Navier-Stokes solver on unstructured tetrahedral grids
The spectral volume (SV) method was first introduced as a method to solve systems of convection equations, like the Euler equations, in a series of papers by Wang et al., e.g. [1] and the references therein. It is related to the discontinuous Galerkin (DG) method, in the sense that it also uses high-order polynomials to approximate the solution in each grid cell, and Riemann solvers to deal wit...
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An efficient implicit lower-upper symmetric Gauss-Seidel (LU-SGS) solution approach has been applied to a high order spectral volume (SV) method for unstructured tetrahedral grids. The LU-SGS solver is preconditioned by the block element matrix, and the system of equations is then solved with a LU decomposition. The compact feature of SV reconstruction facilitates the efficient solution algorit...
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The hierarchical reconstruction (HR) [9, 20] is applied to a piecewise quadratic spectral volume method on two-dimensional unstructured grids as a limiting procedure to prevent spurious oscillations in numerical solutions. The key features of this HR are that the reconstruction on each control volume only uses adjacent control volumes, which forms a compact stencil set, and there is no truncati...
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Rendering highly complex models can be time and space prohibitive, and decimation is an important tool in providing simplifications. A decimated model may replace the original entirely or provide level-of-detail approximations. Here we present and evaluate, quantitatively and qualitatively, methods for rapidly decimating volumetric data defined on a tetrahedral grid. Results are compared using ...
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An analysis of the accuracy and stability properties of the 3D spectral volume method on tetrahedral grids is presented. In the SV method, each simplex grid cell is called a spectral volume (SV), and the SV is further partitioned into polyhedral (3D) control volumes (CVs) to support high-order data reconstructions. In general, the partitioning of an SV into CVs is not uniquely defined, and thus...
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ژورنال
عنوان ژورنال: TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN
سال: 2014
ISSN: 1884-0485
DOI: 10.2322/tastj.12.21