In this study, two-dimensional (2D) numerical simulations of liquid slip flows in parallel-plate microchannels have been performed to obtain heat transfer characteristics and entropy generation rate under asymmetric heating conditions. Heat transfer analysis has been conducted along with second-law analysis through utilizing temperature-dependent thermophysical properties. The results indicate that temperature-dependent thermophysical properties have a positive effect on convective heat transfer and entropy generation. Nusselt numbers of the upper and lower plates and global entropy generation rates are significantly affected by slip parameter and heat flux ratio. It is shown that Nusselt number of the lower plate may have very large but finite values at a specific heat flux ratio. This finding resembles to analytical solutions, where singularities leading to an infinite Nusselt number exist.
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April 2018
Research-Article
Numerical Heat Transfer and Entropy Analysis on Liquid Slip Flows Through Parallel-Plate Microchannels
Mostafa Shojaeian,
Mostafa Shojaeian
Mechatronics Engineering Program,
Faculty of Engineering and Natural Sciences,
Sabanci University,
Tuzla, Istanbul 34956, Turkey
e-mail: shojaeian@sabanciuniv.edu
Faculty of Engineering and Natural Sciences,
Sabanci University,
Tuzla, Istanbul 34956, Turkey
e-mail: shojaeian@sabanciuniv.edu
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Masoumeh Nedaei,
Masoumeh Nedaei
Mechatronics Engineering Program,
Faculty of Engineering and Natural Sciences,
Sabanci University,
Tuzla, Istanbul 34956, Turkey
e-mail: mnedaei@sabanciuniv.edu
Faculty of Engineering and Natural Sciences,
Sabanci University,
Tuzla, Istanbul 34956, Turkey
e-mail: mnedaei@sabanciuniv.edu
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Mehmet Yildiz,
Mehmet Yildiz
Material Science and Engineering Program,
Faculty of Engineering and Natural Sciences,
Sabanci University,
Tuzla, Istanbul 34956, Turkey
e-mail: meyildiz@sabanciuniv.edu
Faculty of Engineering and Natural Sciences,
Sabanci University,
Tuzla, Istanbul 34956, Turkey
e-mail: meyildiz@sabanciuniv.edu
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Ali Koşar
Ali Koşar
Mechatronics Engineering Program,
Faculty of Engineering and Natural Sciences,
Center of Excellence for Functional Surfaces
and Interfaces,
Sabanci University,
Tuzla, Istanbul 34956, Turkey
e-mail: kosara@sabanciuniv.edu
Faculty of Engineering and Natural Sciences,
Center of Excellence for Functional Surfaces
and Interfaces,
Sabanci University,
Tuzla, Istanbul 34956, Turkey
e-mail: kosara@sabanciuniv.edu
Search for other works by this author on:
Mostafa Shojaeian
Mechatronics Engineering Program,
Faculty of Engineering and Natural Sciences,
Sabanci University,
Tuzla, Istanbul 34956, Turkey
e-mail: shojaeian@sabanciuniv.edu
Faculty of Engineering and Natural Sciences,
Sabanci University,
Tuzla, Istanbul 34956, Turkey
e-mail: shojaeian@sabanciuniv.edu
Masoumeh Nedaei
Mechatronics Engineering Program,
Faculty of Engineering and Natural Sciences,
Sabanci University,
Tuzla, Istanbul 34956, Turkey
e-mail: mnedaei@sabanciuniv.edu
Faculty of Engineering and Natural Sciences,
Sabanci University,
Tuzla, Istanbul 34956, Turkey
e-mail: mnedaei@sabanciuniv.edu
Mehmet Yildiz
Material Science and Engineering Program,
Faculty of Engineering and Natural Sciences,
Sabanci University,
Tuzla, Istanbul 34956, Turkey
e-mail: meyildiz@sabanciuniv.edu
Faculty of Engineering and Natural Sciences,
Sabanci University,
Tuzla, Istanbul 34956, Turkey
e-mail: meyildiz@sabanciuniv.edu
Ali Koşar
Mechatronics Engineering Program,
Faculty of Engineering and Natural Sciences,
Center of Excellence for Functional Surfaces
and Interfaces,
Sabanci University,
Tuzla, Istanbul 34956, Turkey
e-mail: kosara@sabanciuniv.edu
Faculty of Engineering and Natural Sciences,
Center of Excellence for Functional Surfaces
and Interfaces,
Sabanci University,
Tuzla, Istanbul 34956, Turkey
e-mail: kosara@sabanciuniv.edu
1Corresponding author.
Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF THERMAL SCIENCE AND ENGINEERING APPLICATIONS. Manuscript received August 30, 2016; final manuscript received June 18, 2017; published online August 29, 2017. Assoc. Editor: Gamal Refaie-Ahmed.
J. Thermal Sci. Eng. Appl. Apr 2018, 10(2): 021003 (10 pages)
Published Online: August 29, 2017
Article history
Received:
August 30, 2016
Revised:
June 18, 2017
Citation
Shojaeian, M., Nedaei, M., Yildiz, M., and Koşar, A. (August 29, 2017). "Numerical Heat Transfer and Entropy Analysis on Liquid Slip Flows Through Parallel-Plate Microchannels." ASME. J. Thermal Sci. Eng. Appl. April 2018; 10(2): 021003. https://doi.org/10.1115/1.4037199
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