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Spectral solution of Poisson equation over infinite branched channel
Faculty
Computer Science
Year:
2005
Type of Publication:
Article
Pages:
1358-1364
Authors:
ISMAIL, G, Ismail, A, Sedqi, AM
Journal:
JOURNAL OF THE KOREAN PHYSICAL SOCIETY KOREAN PHYSICAL SOC
Volume:
46
Research Area:
Physics
ISSN
ISI:000229844500011
Keywords :
spectral solution, collocation points, Schwarz-Christoffel transformation, Y-shape channel
Abstract:
In this paper, we present a direct spectral collocation method for solving Poisson equation in polar coordinates. This equation is expressed spectrally over the unit circle. The resulting equation in spectral form is solved to give a solution to Poisson equation with Dirichlet boundary conditions at collocation points. The unit circle domain is conformally transformed to Y-geometry, retaining the value of the solution to give the solution of the same problem over Y-shape channel. Poisson equation can be solved similarly over many other geometries. The method is easy to implement, fast and gives spectral accuracy.
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