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Direct numerical simulation of aerodynamic sounds by a compressible CFD scheme with node-by-node finite elements
- Source :
-
Computer Methods in Applied Mechanics & Engineering . Feb2006, Vol. 195 Issue 13-16, p1896-1910. 15p. - Publication Year :
- 2006
-
Abstract
- Abstract: A direct numerical simulation (DNS) of aerodynamic sounds is performed by using a compressible CFD scheme with node-by-node finite elements. Although the computational simulations of aerodynamic sounds generated from three-dimensional objects with complex boundary shapes are required in various industrial applications, such simulations involve a lot of difficulties regarding instability in numerical schemes and enormous computational costs. In this paper, the present authors have combined the C-CUP (CIP-Combined Unified Procedure, CIP: Constrained Interpolation Profile) method and the CIVA (Cubic Interpolation with Volume/Area Coordinates) method with the Free Mesh Method (FMM) in order to achieve efficient simulation of aerodynamic sounds using unstructured computational grids of finite elements on parallel computers. As a numerical example, the edge tone is successfully computed using the present method with parallel computing with Hitachi SR8000 supercomputer. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 00457825
- Volume :
- 195
- Issue :
- 13-16
- Database :
- Academic Search Index
- Journal :
- Computer Methods in Applied Mechanics & Engineering
- Publication Type :
- Academic Journal
- Accession number :
- 19464933
- Full Text :
- https://doi.org/10.1016/j.cma.2005.05.039