Numerical Study of Fluid Flow and Heat Transfer Characteristics in a Cone-Column Combined Heat Sink

Wei Zheng, Jianjun Sun, Chenbo Ma, Qiuping Yu, Yuyan Zhang and Tao Niu
Additional contact information
Wei Zheng: School of Mechanical and Electrical Engineering, Nanjing Forestry University, Nanjing 210037, China
Jianjun Sun: School of Mechanical and Electrical Engineering, Nanjing Forestry University, Nanjing 210037, China
Chenbo Ma: School of Mechanical and Electrical Engineering, Nanjing Forestry University, Nanjing 210037, China
Qiuping Yu: School of Mechanical and Electrical Engineering, Nanjing Forestry University, Nanjing 210037, China
Yuyan Zhang: School of Mechanical and Electrical Engineering, Nanjing Forestry University, Nanjing 210037, China
Tao Niu: Jiangsu Sulida Advanced Technology Co., Ltd., Nanjing 210039, China

Energies, 2021, vol. 14, issue 6, 1-17

Abstract: Temperature has a great influence on the normal operation and service life of high-power electronic components. To cope with the increasingly severe heat problems in integrated circuits, an enhanced heat transfer factor E is introduced to evaluate the comprehensive heat transfer performance of microchannel heat sinks (MCHS). The computational fluid dynamics (CFD) software was used to numerically study the fluid flow and heat transfer characteristics in the cone-column combined heat sink. The research results obtained the velocity field and pressure field distribution of the heat sink structure in the range of 100 ≤ Re ≤ 700. When Re changes, the change law of pressure drop Δ P , friction factor f , average Nussel number Nu ave , average substrate temperature T , and enhanced heat transfer factor E , are compared with the circular MCHS. The results show that the uniform arrangement of the cones inside the cone-column combined heat sink can change the flow state of the cooling medium in the microchannel and enhance the heat transfer. In the range of 100 ≤ Re ≤ 700, the base temperature of the cone-column combined heat sink is always lower than the base temperature of the circular MCHS, and the average Nusselt number Nu ave is as high as 2.13 times that of the circular microchannel. The enhanced heat factor E is 1.75 times that of the circular MCHS, indicating that the comprehensive heat transfer performance of the cone-column combined heat sink is significantly better than that of the circular microchannel.

Keywords: microchannel heat sink; enhanced heat transfer factor; fluid flow; comprehensive heat transfer performance (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
https://www.mdpi.com/1996-1073/14/6/1605/pdf (application/pdf)
https://www.mdpi.com/1996-1073/14/6/1605/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:14:y:2021:i:6:p:1605-:d:516609

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().