NDLI: A new incompressible Navier-Stokes solver combining Fourier pseudo-spectral and immersed boundary methods

Content Provider	Tech Science Press
Author	Moreira, L. Q. Pereira, J. C. F. Silveira-neto, A. Silva, C. B. Da Mariano, F. P. Silva, C. B.
Abstract	A new numerical methodology combining Fourier pseudo-spectral and immersed boundary methods - IMERSPEC - is developed for fluid flow problems governed by the incompressible Navier-Stokes equations. The numerical algorithm consists in a classical Fourier pseudo-spectral methodology using the collocation method where wall boundary conditions are modelled by using an immersed boundary method (IBM). The performance of that new methodology is exemplified in two-dimensional numerical simulations of Green-Taylor decaying vortex, lid-driven cavity and flow over a square cylinder. The convergence rate, the accuracy, the influence of the Reynolds number and the external domain size are analyzed. This new method combines some advantages of high accuracy and low computational cost provided by Fourier pseudo-spectral methods (FPSM) with the possibility of tackling complex geometries given by immersed boundary method.
Related Links	https://www.techscience.com/CMES/v59n2/25501
Starting Page	181
Ending Page	216
ISSN	15261492
DOI	10.3970/cmes.2010.059.181
Issue Number	2
Journal	Computer Modeling in Engineering & Sciences (CMES)
Volume Number	59
e-ISSN	15261506
Language	English
Access Restriction	Open
Subject Keyword	Navier-Stokes Immersed Boundary. Numerical Simulations Fourier Pseudo-spectral
Content Type	Text
Resource Type	Article
Subject	Computer Science Applications

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A new incompressible Navier-Stokes solver combining Fourier pseudo-spectral and immersed boundary methods