TY - JOUR
T1 - Experimental and simulation study of flow and heat transfer characteristics of the leaf-veined mini-channel heat sink
AU - Cao, Weixue
AU - Shao, Tianqi
AU - Zhang, Xudong
AU - Zhang, Yixuan
AU - Wang, Yongzhen
N1 - Publisher Copyright:
© The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2025.
PY - 2025/4
Y1 - 2025/4
N2 - In order to enhance the heat dissipation effect of high heat flow density electronic devices and prolong the service life of electronic devices. In this paper, a new type of the leaf-veined mini-channel heat sink (LVMCHS) was proposed based on the bionic blade structure. Numerical simulation technology was used to study the fluid flow, heat transfer and entropy generation characteristics of the LVMCHS. The experimental test platform was constructed for experimental verification. The orthogonal experiment was designed by using water as the coolant. The effects of Re, coolant inlet temperature Tin and heat flux Qw on the pressure drop ΔP, total thermal resistance Rth, average Nusselt number Nuavg and total entropy generation Sgen of the LVMCHS were studied. Polar deviation analysis showed that the order of the influence of each factor on the temperature uniformity (TUF) was Qw>Re > Tin, and the order of the influence of each factor on Nuavg was Re > Tin>Qw. When the Re was in the range of 300 ~ 10,000, with the increase of Re, the Rth decreased by 92.59%, and Sgen decreased by 15.764%. At Re = 9970, its Sgen reached the lowest value of 171.57, the integrated heat transfer performance of the LVMCHS was optimal. Through the trend of the influence of each factor level, the better combination of programmer levels was obtained: when the Qw was 35 W/cm2, the Re was 9970 and the Tin was 5 °C. This study provided a novel approach and guidance for the design and analysis of heat sink.
AB - In order to enhance the heat dissipation effect of high heat flow density electronic devices and prolong the service life of electronic devices. In this paper, a new type of the leaf-veined mini-channel heat sink (LVMCHS) was proposed based on the bionic blade structure. Numerical simulation technology was used to study the fluid flow, heat transfer and entropy generation characteristics of the LVMCHS. The experimental test platform was constructed for experimental verification. The orthogonal experiment was designed by using water as the coolant. The effects of Re, coolant inlet temperature Tin and heat flux Qw on the pressure drop ΔP, total thermal resistance Rth, average Nusselt number Nuavg and total entropy generation Sgen of the LVMCHS were studied. Polar deviation analysis showed that the order of the influence of each factor on the temperature uniformity (TUF) was Qw>Re > Tin, and the order of the influence of each factor on Nuavg was Re > Tin>Qw. When the Re was in the range of 300 ~ 10,000, with the increase of Re, the Rth decreased by 92.59%, and Sgen decreased by 15.764%. At Re = 9970, its Sgen reached the lowest value of 171.57, the integrated heat transfer performance of the LVMCHS was optimal. Through the trend of the influence of each factor level, the better combination of programmer levels was obtained: when the Qw was 35 W/cm2, the Re was 9970 and the Tin was 5 °C. This study provided a novel approach and guidance for the design and analysis of heat sink.
KW - Bionic
KW - Heat transfer performance
KW - Leaf-veined
KW - Mini-channel heat sink
KW - Orthogonal tests
UR - https://www.scopus.com/pages/publications/105000429463
U2 - 10.1007/s00231-025-03557-5
DO - 10.1007/s00231-025-03557-5
M3 - Article
AN - SCOPUS:105000429463
SN - 0947-7411
VL - 61
JO - Heat and Mass Transfer
JF - Heat and Mass Transfer
IS - 4
M1 - 30
ER -