Numerical study of stream-function formulation governing flows in multiply-connected domains by integrated RBFs and Cartesian grids
Article
Article Title | Numerical study of stream-function formulation governing flows in multiply-connected domains by integrated RBFs and Cartesian grids |
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ERA Journal ID | 5111 |
Article Category | Article |
Authors | Le-Cao, K. (Author), Mai-Duy, N. (Author), Tran, C.-D. (Author) and Tran-Cong, T. (Author) |
Journal Title | Computers and Fluids |
Journal Citation | 44 (1), pp. 32-42 |
Number of Pages | 11 |
Year | 2011 |
Place of Publication | United Kingdom |
ISSN | 0045-7930 |
1879-0747 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.compfluid.2010.11.027 |
Web Address (URL) | http://www.sciencedirect.com/science/article/pii/S0045793010003403 |
Abstract | This paper describes a new numerical procedure, based on point collocation, integrated multiquadric functions and Cartesian grids, for the discretisation of the stream-function formulation for flows of a Newtonian fluid in multiply-connected domains. Three particular issues, namely (i) the derivation of the stream-function values on separate boundaries, (ii) the implementation of cross derivatives in irregular regions, and (iii) the treatment of double boundary conditions, are studied in the context of Cartesian grids and approximants based on integrated multiquadric functions in one dimension. Several test problems, i.e. steady flows between a rotating circular cylinder and a fixed square cylinder and also between eccentric cylinders maintained at different temperatures, are investigated. Results obtained are compared well with numerical data available in the literature. |
Keywords | stream-function formulation; multiply-connected domain; integrated radial-basis-function network; Cartesian grid |
ANZSRC Field of Research 2020 | 490303. Numerical solution of differential and integral equations |
401204. Computational methods in fluid flow, heat and mass transfer (incl. computational fluid dynamics) | |
401299. Fluid mechanics and thermal engineering not elsewhere classified | |
Public Notes | File reproduced in accordance with the copyright policy of the publisher/author. |
Byline Affiliations | Computational Engineering and Science Research Centre |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q0x88/numerical-study-of-stream-function-formulation-governing-flows-in-multiply-connected-domains-by-integrated-rbfs-and-cartesian-grids
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