Open AccessHeat transfer enhancement in a rectangular channel with pillars
Author(s) -
Feng Jiao,
Chengzhe Li,
Songjiang Dai,
Kang-Xian Guo,
Yongqing He
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1983/1/012026
Subject(s) - pillar , heat transfer , heat transfer enhancement , reynolds number , mechanics , channel (broadcasting) , materials science , flow (mathematics) , optics , heat transfer coefficient , mechanical engineering , turbulence , physics , engineering , electrical engineering
This paper numerically studied the heat transfer performance of water flowing in a rectangular channel with pillar structures. We systematically investigated the influence of the pitch, inclination angle, shape, and pillar arrangement on the flow and heat transfer characteristics. The results show that adopting spacing with S/d=2 can improve heat transfer performance sufficiently for a low Reynolds number case. Meanwhile, the noticeable enhancement can also be observed by making the pillar inclination direction consistent with the flow direction or staggered rhombic-shaped.