Galerkin Spectral Method for the Vorticity and Stream Function Equations
β Scribed by F Auteri; L Quartapelle
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 271 KB
- Volume
- 149
- Category
- Article
- ISSN
- 0021-9991
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β¦ Synopsis
A Galerkin-Legendre spectral method for the solution of the vorticity and stream function equations in uncoupled form under no-slip conditions in a square domain is presented which fully exploits the separation of variables in the two elliptic problems, benefits from a nonsingular influence matrix, and is able to solve the singular driven cavity problem (modulo Gibbs' phenomenon) even without regularizing the boundary condition at the corners.
π SIMILAR VOLUMES
An embedding approach, based on Fourier expansions and boundary integral equations, is applied to the vorticity-stream function formulation of the Navier-Stokes equations. The algorithm only requires efficient solvers of scalar elliptic equations and, in an asymptotic version, the boundary element m
A Galerkin-Legendre spectral method for the direct solution of Poisson and Helmholtz equations in a three-dimensional rectangular domain is presented. The method extends Jie Shen's algorithm for 2D problems by using the diagonalization of the three mass matrices in the three spatial directions and f