The effect of the inclined perforated baffle on heat transfer and flow patterns in the channel |
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| Authors: | B.K.P. Ary M.S. Lee S.W. Ahn D.H. Lee |
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| Affiliation: | 1. Department of Mechanical Engineering, Sepuluh Nopember Institute Technology, Surabaya 60111, Indonesia;2. Department of Mechanical and System Engineering, Graduate School, Gyeongsang National University, Tongyeong 650-160, Republic of Korea;3. Department of Mechanical and System Engineering, Institute of Marine Industry, Gyeongsang National University, Tongyeong 650-160, Republic of Korea;4. Department of Mechanical and Automotive Engineering, High Safety Vehicle Core Technology Center, Inje University, Gimhae 621-749, Republic of Korea |
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| Abstract: | The effect of a number of inclined perforated baffles on the flow patterns and heat transfer in the rectangular channel with different types of baffles is numerically and experimentally checked out. Reynolds numbers are varied between 23,000 and 57,000. The SST k − ω turbulence model is used in the method to predict turbulent flow. The baffles have the width of 19.8 cm, the square diamond type hole having one side length of 2.55 cm, and the inclination angle of 5°. The results show that the flow patterns around the holes are entirely different with different numbers of holes and it significantly affects the local heat transfer, and two baffles provide greater heat transfer performances than a single baffle. |
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| Keywords: | Inclined perforated baffle Number of baffles Flow pattern Heat transfer |
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