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Heat Transfer and Flow of Nanofluids in a Y-Type Intersection Channel with Multiple Pulsations: A Numerical Study

Author

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  • Wei-Tao Wu

    (Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA)

  • Mehrdad Massoudi

    (U.S. Department of Energy, National Energy Technology Laboratory (NETL), Pittsburgh, PA 15236, USA)

  • Hongbin Yan

    (School of Marine Science and Technology, Northwestern Polytechnical University, Xi’an 710072, China)

Abstract

In this paper, we study pulsed flow and heat transfer in water-Al 2 O 3 nanofluids in a Y-type intersection channel with two inlets and one outlet. At the two inlets, two sinusoidal velocities with a phase difference of π are applied. We assume that the shear viscosity and the thermal conductivity of the nanofluids depend on the nanoparticles concentration. The motion of the nanoparticles is modeled by a convention-diffusion equation, where the effects of the Brownian motion, thermophoretic diffusion, etc., are included. The effects of pulse frequency, pulse amplitude and nanoparticles concentration on the heat transfer are explored numerically at various Reynolds numbers. The results show that the application of the pulsed flow improves the heat transfer efficiency (Nusselt number) for most of the cases studied. Amongst the four factors considered, the effect of the frequency seems to be the most important.

Suggested Citation

  • Wei-Tao Wu & Mehrdad Massoudi & Hongbin Yan, 2017. "Heat Transfer and Flow of Nanofluids in a Y-Type Intersection Channel with Multiple Pulsations: A Numerical Study," Energies, MDPI, vol. 10(4), pages 1-18, April.
    • Handle: RePEc:gam:jeners:v:10:y:2017:i:4:p:492-:d:95155
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    Cited by:

    1. Xiao-Hui Sun & Hongbin Yan & Mehrdad Massoudi & Zhi-Hua Chen & Wei-Tao Wu, 2018. "Numerical Simulation of Nanofluid Suspensions in a Geothermal Heat Exchanger," Energies, MDPI, vol. 11(4), pages 1-18, April.
    2. Hao Zhou & Feng Feng & Qin-Liu Cao & Changsheng Zhou & Wei-Tao Wu & Mehrdad Massoudi, 2022. "Heat Transfer and Flow of a Gel Fuel in Corrugated Channels," Energies, MDPI, vol. 15(19), pages 1-19, October.
    3. Yubai Li & Hongbin Yan & Mehrdad Massoudi & Wei-Tao Wu, 2017. "Effects of Anisotropic Thermal Conductivity and Lorentz Force on the Flow and Heat Transfer of a Ferro-Nanofluid in a Magnetic Field," Energies, MDPI, vol. 10(7), pages 1-19, July.
    4. Shoukat A. Khan & Muataz A. Atieh & Muammer Koç, 2018. "Micro-Nano Scale Surface Coating for Nucleate Boiling Heat Transfer: A Critical Review," Energies, MDPI, vol. 11(11), pages 1-30, November.
    5. Wei-Tao Wu & Nadine Aubry & James F. Antaki & Mark L. McKoy & Mehrdad Massoudi, 2017. "Heat Transfer in a Drilling Fluid with Geothermal Applications," Energies, MDPI, vol. 10(9), pages 1-18, September.
    6. Azharul Karim & M. Masum Billah & M. T. Talukder Newton & M. Mustafizur Rahman, 2017. "Influence of the Periodicity of Sinusoidal Boundary Condition on the Unsteady Mixed Convection within a Square Enclosure Using an Ag–Water Nanofluid," Energies, MDPI, vol. 10(12), pages 1-21, December.

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