A cartesian-grid integrated-RBF method for viscoelastic flows
Paper
Paper/Presentation Title | A cartesian-grid integrated-RBF method for viscoelastic flows |
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Presentation Type | Paper |
Authors | Ho-Minh, D. (Author), Mai-Duy, N. (Author) and Tran-Cong, T. (Author) |
Editors | Khalili, N., Valliappan, S., Li, Q. and Russell, A. |
Journal or Proceedings Title | IOP Conference Series: Materials Science and Engineering |
ERA Conference ID | 42361 |
Journal Citation | 10 (1), pp. 1-9 |
Number of Pages | 9 |
Year | 2010 |
Publisher | IOP Publishing |
Place of Publication | Bristol, United Kingdom |
ISSN | 1757-8981 |
1757-899X | |
Digital Object Identifier (DOI) | https://doi.org/10.1088/1757-899X/10/1/012210 |
Web Address (URL) of Paper | http://iopscience.iop.org/1757-899X/10/1/012210/pdf/1757-899X_10_1_012210.pdf |
Conference/Event | 9th World Congress on Computational Mechanics and 4th Asian-Pacific Congress on Computational Mechanics (WCCM/APCOM 2010) |
Advanced Concepts for Intelligent Vision Systems | |
Event Details | Advanced Concepts for Intelligent Vision Systems ACIVS Rank B B B B B B B B |
Event Details | 9th World Congress on Computational Mechanics and 4th Asian-Pacific Congress on Computational Mechanics (WCCM/APCOM 2010) Event Date 19 to end of 23 Jul 2010 Event Location Sydney, Australia |
Abstract | This paper is concerned with the use of integrated radial-basis-function networks (IRBFNs), Cartesian-grids and point collocation for numerically solving 2D flows of viscoelastic fluids. In the proposed method, RBFNs, which are constructed through integration, are employed to approximate the field variables including stresses, and the governing equations are discretised by means of point collocation. Advantages gained from the integration process over differentiated RBFNs process are (i) better accuracy (ii) more straightforward implementation of boundary conditions and (iii) more stable solutions. The method is verified through several test problems, e.g. planar Poiseuille flow and fully-developed flow in a square duct, with different types of viscoelastic fluids, namely Oldroyd-B and CEF. The obtained results show that (i) The proposed method is easy to implement; (ii) Its pre-processing is simple and (iii) Accurate results are obtained using relatively-coarse grids. |
Keywords | integrated radial basis function; Cartesian grid; viscoelastic flows |
ANZSRC Field of Research 2020 | 401207. Fundamental and theoretical fluid dynamics |
490101. Approximation theory and asymptotic methods | |
401706. Numerical modelling and mechanical characterisation | |
Public Notes | Copyright 2010 IOP Publishing Ltd. Open access journal. This publication is copyright. It may be reproduced in whole or in part for the purposes of study, research, or review, but is subject to the inclusion of an acknowledgment of the source. |
Byline Affiliations | Computational Engineering and Science Research Centre |
https://research.usq.edu.au/item/q0012/a-cartesian-grid-integrated-rbf-method-for-viscoelastic-flows
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