Numerical Investigation on Two-Phase Flow Heat Transfer Performance and Instability with Discrete Heat Sources in Parallel Channels
With the rapid development of integrated circuit technology, the heat flux of electronic chips has been sharply improved. Therefore, heat dissipation becomes the key technology for the safety and reliability of the electronic equipment. In addition, the electronic chips are distributed discretely an...
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doaj-f9e6e7bda748453192a1e6894f0878d82021-08-06T15:21:28ZengMDPI AGEnergies1996-10732021-07-01144408440810.3390/en14154408Numerical Investigation on Two-Phase Flow Heat Transfer Performance and Instability with Discrete Heat Sources in Parallel ChannelsChangming Hu0Rui Wang1Ping Yang2Weihao Ling3Min Zeng4Jiyu Qian5Qiuwang Wang6Nanjing Research Institute of Electronics Technology, Nanjing 210039, ChinaNanjing Research Institute of Electronics Technology, Nanjing 210039, ChinaKey Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, Xi’an Jiaotong University, Xi’an 710049, ChinaKey Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, Xi’an Jiaotong University, Xi’an 710049, ChinaKey Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, Xi’an Jiaotong University, Xi’an 710049, ChinaNanjing Research Institute of Electronics Technology, Nanjing 210039, ChinaKey Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, Xi’an Jiaotong University, Xi’an 710049, ChinaWith the rapid development of integrated circuit technology, the heat flux of electronic chips has been sharply improved. Therefore, heat dissipation becomes the key technology for the safety and reliability of the electronic equipment. In addition, the electronic chips are distributed discretely and used periodically in most applications. Based these problems, the characteristics of the heat transfer performance of flow boiling in parallel channels with discrete heat source distribution are investigated by a VOF model. Meanwhile, the two-phase flow instability in parallel channels with discrete heat source distribution is analyzed based on a one-dimensional homogeneous model. The results indicate that the two-phase flow pattern in discrete heat source distribution is more complicated than that in continuous heat source distribution. It is necessary to optimize the relative position of the discrete heat sources, which will affect the heat transfer performance. In addition, compared with the continuous heat source, the flow stability of discrete heat sources is better with higher and lower inlet subcooling. With a constant sum of heating power, the greater the heating power near the outlet, the better the flow stability.https://www.mdpi.com/1996-1073/14/15/4408multiple heat sourcesflow boilingdensity wave oscillationVOFFORTRAN |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Changming Hu Rui Wang Ping Yang Weihao Ling Min Zeng Jiyu Qian Qiuwang Wang |
spellingShingle |
Changming Hu Rui Wang Ping Yang Weihao Ling Min Zeng Jiyu Qian Qiuwang Wang Numerical Investigation on Two-Phase Flow Heat Transfer Performance and Instability with Discrete Heat Sources in Parallel Channels Energies multiple heat sources flow boiling density wave oscillation VOF FORTRAN |
author_facet |
Changming Hu Rui Wang Ping Yang Weihao Ling Min Zeng Jiyu Qian Qiuwang Wang |
author_sort |
Changming Hu |
title |
Numerical Investigation on Two-Phase Flow Heat Transfer Performance and Instability with Discrete Heat Sources in Parallel Channels |
title_short |
Numerical Investigation on Two-Phase Flow Heat Transfer Performance and Instability with Discrete Heat Sources in Parallel Channels |
title_full |
Numerical Investigation on Two-Phase Flow Heat Transfer Performance and Instability with Discrete Heat Sources in Parallel Channels |
title_fullStr |
Numerical Investigation on Two-Phase Flow Heat Transfer Performance and Instability with Discrete Heat Sources in Parallel Channels |
title_full_unstemmed |
Numerical Investigation on Two-Phase Flow Heat Transfer Performance and Instability with Discrete Heat Sources in Parallel Channels |
title_sort |
numerical investigation on two-phase flow heat transfer performance and instability with discrete heat sources in parallel channels |
publisher |
MDPI AG |
series |
Energies |
issn |
1996-1073 |
publishDate |
2021-07-01 |
description |
With the rapid development of integrated circuit technology, the heat flux of electronic chips has been sharply improved. Therefore, heat dissipation becomes the key technology for the safety and reliability of the electronic equipment. In addition, the electronic chips are distributed discretely and used periodically in most applications. Based these problems, the characteristics of the heat transfer performance of flow boiling in parallel channels with discrete heat source distribution are investigated by a VOF model. Meanwhile, the two-phase flow instability in parallel channels with discrete heat source distribution is analyzed based on a one-dimensional homogeneous model. The results indicate that the two-phase flow pattern in discrete heat source distribution is more complicated than that in continuous heat source distribution. It is necessary to optimize the relative position of the discrete heat sources, which will affect the heat transfer performance. In addition, compared with the continuous heat source, the flow stability of discrete heat sources is better with higher and lower inlet subcooling. With a constant sum of heating power, the greater the heating power near the outlet, the better the flow stability. |
topic |
multiple heat sources flow boiling density wave oscillation VOF FORTRAN |
url |
https://www.mdpi.com/1996-1073/14/15/4408 |
work_keys_str_mv |
AT changminghu numericalinvestigationontwophaseflowheattransferperformanceandinstabilitywithdiscreteheatsourcesinparallelchannels AT ruiwang numericalinvestigationontwophaseflowheattransferperformanceandinstabilitywithdiscreteheatsourcesinparallelchannels AT pingyang numericalinvestigationontwophaseflowheattransferperformanceandinstabilitywithdiscreteheatsourcesinparallelchannels AT weihaoling numericalinvestigationontwophaseflowheattransferperformanceandinstabilitywithdiscreteheatsourcesinparallelchannels AT minzeng numericalinvestigationontwophaseflowheattransferperformanceandinstabilitywithdiscreteheatsourcesinparallelchannels AT jiyuqian numericalinvestigationontwophaseflowheattransferperformanceandinstabilitywithdiscreteheatsourcesinparallelchannels AT qiuwangwang numericalinvestigationontwophaseflowheattransferperformanceandinstabilitywithdiscreteheatsourcesinparallelchannels |
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