A comprehensive study of two-phase flow and heat transfer of water/Ag nanofluid in an elliptical curved minichannel

Sajad Mir; Omid Ali Akbari; Davood Toghraie; Ghanbarali Sheikhzadeh; Ali Marzban; Saeid Mir; Pouyan Talebizadehsardari

doi:10.1016/j.cjche.2019.07.007

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A comprehensive study of two-phase flow and heat transfer of water/Ag nanofluid in an elliptical curved minichannel

Fluid Dynamics and Transport Phenomena | Updated：2026-01-06

- A comprehensive study of two-phase flow and heat transfer of water/Ag nanofluid in an elliptical curved minichannel
- Chinese Journal of Chemical Engineering Vol. 28, Issue 2, Pages: 383-402(2020)
- Affiliations：
  
  1. Department of Mechanical Engineering, Aligoudarz Branch, Islamic Azad University, Aligoudarz,Iran
  2. Young Researchers and Elite Club, Khomeinishahr Branch, Islamic Azad University, Khomeinishahr,Iran
  3. Department of Mechanical Engineering, Khomeinishahr Branch, Islamic Azad University, Khomeinishahr,Iran
  4. Department of Mechanical Engineering, University of Kashan, Kashan,Iran
  5. Department for Management of Science and Technology Development, Ton Duc Thang University, Ho Chi Minh City,Vietnam
  6. Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City,Vietnam
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2019.07.007
  CLC：
- Published：2020
- Accepted：
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Sajad Mir, Omid Ali Akbari, Davood Toghraie, Ghanbarali Sheikhzadeh, Ali Marzban, Saeid Mir, Pouyan Talebizadehsardari. A comprehensive study of two-phase flow and heat transfer of water/Ag nanofluid in an elliptical curved minichannel[J]. Chinese Journal of Chemical Engineering, 2020, 28(2): 383-402.
DOI：

Sajad Mir, Omid Ali Akbari, Davood Toghraie, Ghanbarali Sheikhzadeh, Ali Marzban, Saeid Mir, Pouyan Talebizadehsardari. A comprehensive study of two-phase flow and heat transfer of water/Ag nanofluid in an elliptical curved minichannel[J]. Chinese Journal of Chemical Engineering, 2020, 28(2): 383-402. DOI： 10.1016/j.cjche.2019.07.007.

摘要

Abstract

In this research

laminar flow and heat transfer of two-phase water/Ag nanofluid with 0-6% volume fraction of nanoparticles at

=150-700 in a curved geometry are simulated using finite volume method. Studied geometry is an elliptical curved minichannel with curvature angle of 180°. Forced and natural flow of two-phase nanofluid is simulated at

=15000

35000 and 75000. For estimation of nanofluid flow behavior

two-phase mixture method is used. The second-order discretization and SIMPLEC algorithm are used for solving governing equations. The results indicate that the increase of volume fraction of nanoparticles leads to the enhancement of the temperature of central line of flow. The increase of Grashof number (

~75000) has a great effect on reduction of dimensionless temperature in central line of flow. Creation of thermal boundary layer at

=500 and after the angle of 30° becomes significant. In low Grashof numbers (

~15000)

due to the great effects of temperature gradients close to wall

these regions have significant entropy generation.

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