Open Access
ARTICLE
TRANSVERSAL FLOW AND HEAT TRANSFER OF TWO CYLINDERS WITH A FLAPPING REED BETWEEN THEM
Zhiyun Wang*, Ziqing Wang, Mo Yang
School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai, 200093, China
*
Corresponding author. Email: wangzhiyun@usst.edu.cn
Frontiers in Heat and Mass Transfer 2021, 17, 1-7. https://doi.org/10.5098/hmt.17.10
Abstract
This paper presents a two-dimensional fluid-structure interaction numerical simulation of fluid flow over two horizontal heat exchange cylinders
affected by a flapping reed in a domain. The reed is a thin flexible sheet made of elastic material with one end fixed on the trailing edge of the
upstream cylinder. The effects of the reed length and the cylinder spacing on the periodic oscillations of the reed, the flow field and the heat transfer
of the downstream cylinder. The results show that the oscillation of the reed in this paper is a single-period oscillate model. Compared to the case of
cylinder without any measurement of heat transfer enhancement (clean cylinder), the heat transfer performance of the cylinder with the reed could be
enhanced under certain conditions. For the case of the cylinder spacing S*= 1.5, as the length of the reed increases, the heat transfer of the
downstream cylinder increases by up to 14% compared to the clean cylinder, while the domain resistance coefficient is almost unchanged. For the
cases of cylinder spacing S*= 2.0, as the length of the reed increases, the heat transfer of the downstream cylinder gradually decreases, but the
domain resistance coefficient gradually increases to 12%.
Keywords
Cite This Article
Wang, Z., Wang, Z., Yang, M. (2021). TRANSVERSAL FLOW AND HEAT TRANSFER OF TWO CYLINDERS WITH A FLAPPING REED BETWEEN THEM.
Frontiers in Heat and Mass Transfer, 17(1), 1–7.