Resolution of computational aeroacoustics problems on unstructured grids with a higher-order finite volume scheme |
| |
Authors: | X. Nogueira I. Colominas L. Cueto-Felgueroso F. Navarrina |
| |
Affiliation: | a Group of Numerical Methods in Engineering, Universidade da Coruña, Civil Eng. School, Campus de Elviña, 15071, A Coruña, Spain b Department of Civil and Environmental Engineering, MIT, 77 Massachusetts Ave 48-108, Cambridge, MA 02139, USA c Arts et Métiers ParisTech, 151 boulevard de l’Hôpital, 75013 Paris, France |
| |
Abstract: | Computational fluid dynamics (CFD) has become increasingly used in the industry for the simulation of flows. Nevertheless, the complex configurations of real engineering problems make the application of very accurate methods that only work on structured grids difficult. From this point of view, the development of higher-order methods for unstructured grids is desirable. The finite volume method can be used with unstructured grids, but unfortunately it is difficult to achieve an order of accuracy higher than two, and the common approach is a simple extension of the one-dimensional case. The increase of the order of accuracy in finite volume methods on general unstructured grids has been limited due to the difficulty in the evaluation of field derivatives. This problem is overcome with the application of the Moving Least Squares (MLS) technique on a finite volume framework. In this work we present the application of this method (FV-MLS) to the solution of aeroacoustic problems. |
| |
Keywords: | Computational aeroacoustics Finite volume method Moving Least Squares Unstructured grids |
本文献已被 ScienceDirect 等数据库收录! |
|