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Extending meshless method of approximate particular solutions (MAPS) to two-dimensional convection heat transfer problems

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  • Granados, J.M.
  • Bustamante, C.A.
  • Florez, W.F.

Abstract

Natural, forced and mixed convection heat transfer problems are solved by the meshless Method of Approximate Particular Solutions (MAPS). Particular solutions of Poisson and Stokes equations are employed to approximate temperature and velocity, respectively. The latter is used to obtained a closed expression for pressure particular solution. In both cases, the source terms are multiquadric radial basis functions which allow to obtain analytical expressions for these auxiliary problems. In order to couple momentum and energy equations, a relaxation strategy is implemented to avoid convergence problems due to the difference between successive temperature and velocity changes when solving the steady problem from an initial guess. The developed and validated numerical scheme is used to study flow and heat transfer in two two-dimensional problems: natural convection in concentric annulus between a square and a circular cylinder and non-isothermal flow past a staggered tube bundle. Numerical solutions obtained by MAPS are comparable in accuracy to solutions reported by authors who uses denser nodal distributions, showing the capability of the present method to accurately solve heat convection problems with temperature and heat flux boundary conditions as well as curve geometries and internal flow situations.

Suggested Citation

  • Granados, J.M. & Bustamante, C.A. & Florez, W.F., 2021. "Extending meshless method of approximate particular solutions (MAPS) to two-dimensional convection heat transfer problems," Applied Mathematics and Computation, Elsevier, vol. 390(C).
    • Handle: RePEc:eee:apmaco:v:390:y:2021:i:c:s0096300320304434
    DOI: 10.1016/j.amc.2020.125484
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    1. Vali Enjilela & Davood Salimi & Ali Tavasoli & Mohsen Lotfi, 2016. "Stabilized MLPG-VF-based method with CBS scheme for laminar flow at high Reynolds and Rayleigh numbers," International Journal of Modern Physics C (IJMPC), World Scientific Publishing Co. Pte. Ltd., vol. 27(07), pages 1-31, July.
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