On the smoothing properties of the SIMPLE pressure-correction algorithm
β Scribed by G. J. Shaw; S. Sivaloganathan
- Publisher
- John Wiley and Sons
- Year
- 1988
- Tongue
- English
- Weight
- 825 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0271-2091
No coin nor oath required. For personal study only.
β¦ Synopsis
A local mode Fourier analysis is used to assess the suitability of the SIMPLE pressure-correction algorithm to act as a smoother in a multigrid method. The necessary ellipticity of the Navier-Stokes equations and their discrete representation are established. The theoretical analysis is compared with practical results.
π SIMILAR VOLUMES
The stability of fixed-lag smoothers for linear system state estimation is considered. The main result proved is that the smoother is unstable when the usual set of conditions hold which guarantee asymptotic stability of the optimum filter.
It is well-known that the EM algorithm generally converges to a local maximum likelihood estimate. However, there have been many evidences to show that the EM algorithm can converge correctly to the true parameters as long as the overlap of Gaussians in the sample data is small enough. This paper st