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High-Order Spectral Difference Method on 3D Unstructured Grids via Mixed Elements
- Source :
- Xibei Gongye Daxue Xuebao, Vol 37, Iss 5, Pp 968-976 (2019)
- Publication Year :
- 2019
- Publisher :
- The Northwestern Polytechnical University, 2019.
-
Abstract
- The high-order methods is difficultly applied in various elements. The development of a 3D solver by using the spectral difference method of unstructured grids via mixed elements is presented. A mixed tri-prism and tetrahedral grid is firstly refined using one-level h-refinement to generate a hexahedral grid while keeping the curvature of wall boundaries. The SD method designed for hexahedral elements can subsequently be applied for refining the unstructured grid. Through a series of numerical tests, the present method is high-order accurate for both inviscid and viscous flows is demonstrated; the results obtained for inviscid and viscous compressible flows compare well with other published results.
- Subjects :
- Computer science
curved wall boundary
computational fluid dynamics
Computational fluid dynamics
Curvature
01 natural sciences
010305 fluids & plasmas
Unstructured grid
Physics::Fluid Dynamics
spectral difference method
Inviscid flow
0103 physical sciences
unstructured grid
0101 mathematics
Motor vehicles. Aeronautics. Astronautics
business.industry
Mathematical analysis
General Engineering
TL1-4050
Solver
Grid
010101 applied mathematics
Tetrahedron
mixed elements
Hexahedron
business
Subjects
Details
- Language :
- Chinese
- ISSN :
- 26097125 and 10002758
- Volume :
- 37
- Issue :
- 5
- Database :
- OpenAIRE
- Journal :
- Xibei Gongye Daxue Xuebao
- Accession number :
- edsair.doi.dedup.....a61cb02812b8bb0b067e6bc0c92ee392