Investigation Of Fluid Flow And Heat Transfer Characteristics In Wavy Mini-Channel Heat Sink With Interconnectors

IF 2.8 4区工程技术 Q2 ENGINEERING, MECHANICAL

Journal of Heat Transfer-transactions of The Asme Pub Date : 2023-07-07 DOI:10.1115/1.4062912

A. Morshed, Abdul Aziz Shuvo, Md. Omarsany Bappy, Amitav Tikadar, T. C. Paul

{"title":"Investigation Of Fluid Flow And Heat Transfer Characteristics In Wavy Mini-Channel Heat Sink With Interconnectors","authors":"A. Morshed, Abdul Aziz Shuvo, Md. Omarsany Bappy, Amitav Tikadar, T. C. Paul","doi":"10.1115/1.4062912","DOIUrl":null,"url":null,"abstract":"\n In this paper, a novel sinusoidal wavy mini-channel heat sink (MCHS) with inter-connectors (IC w-MCHS) has been introduced, and the effectiveness of the proposed heat sink over conventional mini-channel heat sink (s-MCHS) has been numerically investigated. Different parameters, i.e., wavelengths, wave amplitudes, and phase shifts of the proposed sinusoidal wavy MCHS, were varied to study its effect on thermal and hydraulic performance. This study used three different wavelengths, three different amplitudes, and two different phase shifts, and Reynolds number (Re) varied from 300 to 800. The Nusselt number (Nu) of IC w-MCHS increased as the wave amplitude ratio (α) and Re increased, whereas it increased with the decrement of the wavelength ratio (β). Nu of the IC w-MCHS was also found to depend on phase shift (θp); for θp = π, the chaotic advection and increment of flow reversal were observed in the IC w-MCHS compared to θp = 0, resulting in higher Nu and higher pressure drop penalty. Nu of the IC w-MCHS was found to be 115% higher compared to s-MCHS at Re 550, θp = π,and a = 0.3,whereas it was found 77% higher for θp = 0. The maximum temperature of the IC w-MCHS heat sink was also found to decrease compared to that of the s-MCHS due to enhanced coolant mixing. A maximum26% decrease in the heat sink temperature was observed for the IC w-MCHS at Re 800 compared to the s-MCHS.","PeriodicalId":15937,"journal":{"name":"Journal of Heat Transfer-transactions of The Asme","volume":"19 1","pages":""},"PeriodicalIF":2.8000,"publicationDate":"2023-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Heat Transfer-transactions of The Asme","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1115/1.4062912","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}

引用次数: 0

Abstract

In this paper, a novel sinusoidal wavy mini-channel heat sink (MCHS) with inter-connectors (IC w-MCHS) has been introduced, and the effectiveness of the proposed heat sink over conventional mini-channel heat sink (s-MCHS) has been numerically investigated. Different parameters, i.e., wavelengths, wave amplitudes, and phase shifts of the proposed sinusoidal wavy MCHS, were varied to study its effect on thermal and hydraulic performance. This study used three different wavelengths, three different amplitudes, and two different phase shifts, and Reynolds number (Re) varied from 300 to 800. The Nusselt number (Nu) of IC w-MCHS increased as the wave amplitude ratio (α) and Re increased, whereas it increased with the decrement of the wavelength ratio (β). Nu of the IC w-MCHS was also found to depend on phase shift (θp); for θp = π, the chaotic advection and increment of flow reversal were observed in the IC w-MCHS compared to θp = 0, resulting in higher Nu and higher pressure drop penalty. Nu of the IC w-MCHS was found to be 115% higher compared to s-MCHS at Re 550, θp = π,and a = 0.3,whereas it was found 77% higher for θp = 0. The maximum temperature of the IC w-MCHS heat sink was also found to decrease compared to that of the s-MCHS due to enhanced coolant mixing. A maximum26% decrease in the heat sink temperature was observed for the IC w-MCHS at Re 800 compared to the s-MCHS.

查看原文本刊更多论文

带接头的波浪形小通道散热器的流体流动和传热特性研究

本文介绍了一种新型的带接口的正弦波型小通道散热器(IC w-MCHS)，并对其与传统的小通道散热器(s-MCHS)相比的有效性进行了数值研究。通过改变所提出的正弦波型MCHS的波长、波幅和相移等参数，研究其对热工性能和水力性能的影响。本研究使用了三种不同的波长、三种不同的振幅和两种不同的相移，雷诺数(Re)在300到800之间变化。IC w-MCHS的Nusselt数(Nu)随波幅比(α)和Re的增大而增大，随波长比(β)的减小而增大。IC w-MCHS的Nu也与相移(θp)有关;当θp = π时，与θp = 0相比，IC w-MCHS中出现了混沌平流和流动反转的增加，从而导致更高的Nu和更高的压降惩罚。在Re 550、θp = π和a = 0.3时，IC w-MCHS的Nu比s-MCHS高115%，而在θp = 0时，Nu比s-MCHS高77%。与s-MCHS相比，由于增强了冷却剂的混合，IC w-MCHS散热器的最高温度也有所降低。与s-MCHS相比，IC w-MCHS的热沉温度在re800下最大降低了26%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Journal of Heat Transfer-transactions of The Asme 工程技术-工程：机械

自引率

0.00%

发文量

182

审稿时长

4.7 months

期刊介绍： Topical areas including, but not limited to: Biological heat and mass transfer; Combustion and reactive flows; Conduction; Electronic and photonic cooling; Evaporation, boiling, and condensation; Experimental techniques; Forced convection; Heat exchanger fundamentals; Heat transfer enhancement; Combined heat and mass transfer; Heat transfer in manufacturing; Jets, wakes, and impingement cooling; Melting and solidification; Microscale and nanoscale heat and mass transfer; Natural and mixed convection; Porous media; Radiative heat transfer; Thermal systems; Two-phase flow and heat transfer. Such topical areas may be seen in: Aerospace; The environment; Gas turbines; Biotechnology; Electronic and photonic processes and equipment; Energy systems, Fire and combustion, heat pipes, manufacturing and materials processing, low temperature and arctic region heat transfer; Refrigeration and air conditioning; Homeland security systems; Multi-phase processes; Microscale and nanoscale devices and processes.