Numerical investigations on the turbulent forced convection of nanofluids flow in a triangular-corrugated channel

M. A. Ahmed, Mohd Zamri Yusoff, Khai Ching Ng, N. H. Shuaib

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10 Citations (Scopus)

Abstract

In this paper, turbulent forced convection of nanofluids flow in triangular-corrugated channels is numerically investigated over Reynolds number ranges of 1000-5000. Four different types of nanofluids which are Al2O3, CuO, SiO2 and ZnO-water with nanoparticles diameters in the range of 30-70 nm and the range of nanoparticles volume fraction from 0% to 4% have been considered. The governing equations of mass, momentum and energy are solved using finite volume method (FVM). The low Reynolds number k-ε model of Launder and Sharma is adopted as well. It is found that the average Nusselt number, pressure drop, heat transfer enhancement, thermal-hydraulic performance increase with increasing in the volume fraction of nanoparticles and with decreasing in the diameter of nanoparticles. Furthermore, the SiO2-water nanofluid provides the highest thermal-hydraulic performance among other types of nanofluids followed by Al2O3, ZnO and CuO-water nanofluids. Moreover, the pure water has the lowest heat transfer enhancement as well as thermal-hydraulic performance.

Original languageEnglish
Pages (from-to)212-225
Number of pages14
JournalCase Studies in Thermal Engineering
Volume6
DOIs
Publication statusPublished - 01 Jan 2015

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Forced convection
Nanoparticles
Water
Hydraulics
Volume fraction
Reynolds number
Heat transfer
Finite volume method
Nusselt number
Pressure drop
Momentum
Hot Temperature

All Science Journal Classification (ASJC) codes

  • Engineering (miscellaneous)
  • Fluid Flow and Transfer Processes

Cite this

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abstract = "In this paper, turbulent forced convection of nanofluids flow in triangular-corrugated channels is numerically investigated over Reynolds number ranges of 1000-5000. Four different types of nanofluids which are Al2O3, CuO, SiO2 and ZnO-water with nanoparticles diameters in the range of 30-70 nm and the range of nanoparticles volume fraction from 0{\%} to 4{\%} have been considered. The governing equations of mass, momentum and energy are solved using finite volume method (FVM). The low Reynolds number k-ε model of Launder and Sharma is adopted as well. It is found that the average Nusselt number, pressure drop, heat transfer enhancement, thermal-hydraulic performance increase with increasing in the volume fraction of nanoparticles and with decreasing in the diameter of nanoparticles. Furthermore, the SiO2-water nanofluid provides the highest thermal-hydraulic performance among other types of nanofluids followed by Al2O3, ZnO and CuO-water nanofluids. Moreover, the pure water has the lowest heat transfer enhancement as well as thermal-hydraulic performance.",
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AU - Ng, Khai Ching

AU - Shuaib, N. H.

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N2 - In this paper, turbulent forced convection of nanofluids flow in triangular-corrugated channels is numerically investigated over Reynolds number ranges of 1000-5000. Four different types of nanofluids which are Al2O3, CuO, SiO2 and ZnO-water with nanoparticles diameters in the range of 30-70 nm and the range of nanoparticles volume fraction from 0% to 4% have been considered. The governing equations of mass, momentum and energy are solved using finite volume method (FVM). The low Reynolds number k-ε model of Launder and Sharma is adopted as well. It is found that the average Nusselt number, pressure drop, heat transfer enhancement, thermal-hydraulic performance increase with increasing in the volume fraction of nanoparticles and with decreasing in the diameter of nanoparticles. Furthermore, the SiO2-water nanofluid provides the highest thermal-hydraulic performance among other types of nanofluids followed by Al2O3, ZnO and CuO-water nanofluids. Moreover, the pure water has the lowest heat transfer enhancement as well as thermal-hydraulic performance.

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