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ISSN Print: 1940-2503
ISSN Online: 1940-2554
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0.3
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22
Indexed in
THE EFFECT OF VERTICAL VIBRATIONS ON NATURAL HEAT TRANSFER FROM AN ISOTHERMAL ARRAY OF CYLINDERS
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ABSTRACT
This paper presents the fractional step algorithm using Characteristic Based Split (CBS) in ALE framework for the numerical simulation of unsteady laminar free convection heat transfer from an oscillating array of isothermal circular cylinders. The variations of flow and thermal fields are classified into a class of moving boundary problems. The moving interfaces between the fluid and cylinders have been considered. Governing equations consisting of continuity, momentum, and energy equations were solved numerically by finite element method and arbitrary Lagrangian-Eulerian kinematics description. The effects of cylinder spacing, Rayleigh number, and frequency of oscillations on the flow structures and heat transfer in the array were investigated. The results show that increments of amplitude of vibrations and Rayleigh number increase the average Nusselt number of each cylinder
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Li Shuzhou, Cao Liankai, Khan Muhammad Shehzad, Chen Hongli, Development of a sub-channel thermal hydraulic analysis code and its application to lead cooled fast reactor, Applied Thermal Engineering, 117, 2017. Crossref
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Abadi S.M.A. Noori Rahim, Ahmadpour A., Meyer J.P., Effects of vibration on pool boiling heat transfer from a vertically aligned array of heated tubes, International Journal of Multiphase Flow, 118, 2019. Crossref