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ENCIT 2016
16th Brazilian Congress of Thermal Sciences and Engineering
NUMERICAL ASSESSMENT OF LAMINAR FLOW AND CONJUGATE HEAT TRANSFER IN PARALLEL-PLATE CHANNELS WITH INCLINED FINS AT LOW REYNOLDS NUMBER
Submission Author:
Leandro Henrique Perão , SC
Co-Authors:
Paulo Zdanski, Miguel Vaz Jr.
Presenter: Leandro Henrique Perão
doi://10.26678/ABCM.ENCIT2016.CIT2016-0012
Abstract
The conjugate heat transfer of the laminar flow of a Newtonian fluid in a two-dimensional horizontal finned channel is numerically evaluated. The channel comprises heat conducting thick walls with prescribed temperature in the external surfaces. Transversal, equally spaced fins are placed in the internal surface of the channel along the flow direction. Fluid flow enters the channel at constant velocity and temperature. Heat transfer takes place in the channel, at the fluid-solid interface and in the thick channel walls by heat conduction. Furthermore, the angle between fins and the channel walls, was assumed to vary from 0° (smooth channel without fins) to 90° (classical case) in the clockwise direction. The maximum blockage ratio of the geometry is 0.4 whereas aspect ratio is 2 for all cases. The numerical simulations were obtained using the commercial code CFX®, that solves the transport equations using unstructured meshes. The influence of different fins configurations on heat transfer is compared and discussed.
Keywords
conjugate heat transfer, CFD, laminar flow, parallel-plate, fins
