A numerical study of the effects of heat transfer and fluid flow on tube insertion length in computer-cooling radiators

Jin Tae Choi, Oh Kyung Kwon, Jae Ho Yun, Yong Chan Kim

Research output: Contribution to journalArticle

Abstract

The performance of flat-tube radiators with lowered fins was numerically investigated for different tube insertion lengths. The results of numerical analysis using CFX-11 were compared with experimental results. In this study, three types of flat-tube radiators with lowered fins were considered An experiment was conducted to validate the numerical results. Flow rate ratio (FR) and Stotai were introduced to understand the uniformity of flow distribution easily. The results of numerical analysis revealed that the heat transfer rate and pressure drop increased as the mass flow rate increased Further, the results showed that the heat transfer rate of sample 3 with h/D = 0.5 was higher than that of the other samples. The pressure drop increased as the insertion length toward the header part increased and the pressure drop in the case of sample 3 appeared to be the highest The factor Stotal showed that the uniformity of the flow distribution in the case of sample 1 with h/D = 0 was higher than that in the case of the other samples.

Original languageEnglish
Pages (from-to)145-152
Number of pages8
JournalTransactions of the Korean Society of Mechanical Engineers, B
Volume35
Issue number2
DOIs
Publication statusPublished - 2011 Feb 1

Fingerprint

Radiators
Pressure drop
Flow of fluids
Heat transfer
Cooling
Numerical analysis
Flow rate
Tubes (components)
Experiments

Keywords

  • Cpu cooling
  • Electronic devices
  • Flat-Tube
  • Liquid-Cooling
  • Louver-Fin
  • Radiator

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

A numerical study of the effects of heat transfer and fluid flow on tube insertion length in computer-cooling radiators. / Choi, Jin Tae; Kwon, Oh Kyung; Yun, Jae Ho; Kim, Yong Chan.

In: Transactions of the Korean Society of Mechanical Engineers, B, Vol. 35, No. 2, 01.02.2011, p. 145-152.

Research output: Contribution to journalArticle

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