Numerical and Experimental Comparative Study on Nanofluids Flow and Heat Transfer in a Ribbed Triangular Duct

H. E. Ahmed, M. I. Ahmed, Mohd Zamri Yusoff

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Numerical and experimental investigation is carried out to study the effect of combined vortex generator and nanofluids on turbulent heat transfer and fluid flow characteristics in an equilateral triangular duct. A triangular duct provides a lower heat transfer rate and lower pressure drop compared to other duct configurations. The improvement of heat transfer of these ducts increases their importance for providing higher heat transfer and lower pressure drop. Two different types of nanoparticles, namely Al2O3 and SiO2, suspended in distilled water with two particle concentrations are successfully prepared and experimentally tested. The numerical and experimental results show dramatic heat transfer enhancement by using a vortex generator and nanofluids, simultaneously accomplished with a moderate increase in the friction factor. A low deviation has been seen between the present numerical and experimental results.

Original languageEnglish
Pages (from-to)759-780
Number of pages22
JournalExperimental Heat Transfer
Volume29
Issue number6
DOIs
Publication statusPublished - 01 Nov 2016

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ducts
Ducts
heat transfer
Heat transfer
vortex generators
pressure drop
Gas generators
low pressure
Pressure drop
turbulent heat transfer
Vortex flow
friction factor
flow characteristics
fluid flow
Flow of fluids
deviation
nanoparticles
augmentation
Friction
Nanoparticles

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Instrumentation
  • Electrical and Electronic Engineering

Cite this

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abstract = "Numerical and experimental investigation is carried out to study the effect of combined vortex generator and nanofluids on turbulent heat transfer and fluid flow characteristics in an equilateral triangular duct. A triangular duct provides a lower heat transfer rate and lower pressure drop compared to other duct configurations. The improvement of heat transfer of these ducts increases their importance for providing higher heat transfer and lower pressure drop. Two different types of nanoparticles, namely Al2O3 and SiO2, suspended in distilled water with two particle concentrations are successfully prepared and experimentally tested. The numerical and experimental results show dramatic heat transfer enhancement by using a vortex generator and nanofluids, simultaneously accomplished with a moderate increase in the friction factor. A low deviation has been seen between the present numerical and experimental results.",
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Numerical and Experimental Comparative Study on Nanofluids Flow and Heat Transfer in a Ribbed Triangular Duct. / Ahmed, H. E.; Ahmed, M. I.; Yusoff, Mohd Zamri.

In: Experimental Heat Transfer, Vol. 29, No. 6, 01.11.2016, p. 759-780.

Research output: Contribution to journalArticle

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