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Entropy analysis for nanofluid flow over a stretching sheet in the presence of heat generation/absorption and partial slip

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Abstract

The boundary layer heat transfer and entropy generation of a nanofluid over an isothermal linear stretching sheet with heat generation/ absorption have been analyzed. In the nanofluid model, the development of nanoparticles concentration gradient due to slip mechanisms, the effects of Brownian motion and thermophoresis, is taken into account. The dependency of the local Nusselt number and entropy generation number on the non-dimensional parameters is numerically investigated. The results show that the increase of heat generation parameter, Brownian motion parameter, or thermophoresis parameter decreases the entropy generation number in the vicinity of the sheet.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Shahid Chamran University of Ahvaz, Ahvaz, Iran

    Aminreza Noghrehabadi, Mohammad Reza Saffarian, Rashid Pourrajab & Mohammad Ghalambaz

Authors
  1. Aminreza Noghrehabadi
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  2. Mohammad Reza Saffarian
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  3. Rashid Pourrajab
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  4. Mohammad Ghalambaz
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Corresponding author

Correspondence to Aminreza Noghrehabadi.

Additional information

Recommended by Associate Editor Dongsik Kim

Aminreza Noghrehabadi is an assistant professor in the department of Mechanical Egineering at Shahid Chamran University of Ahvaz. His research interests are in nanofluid heat and mass transfer, NEMS actuators, and heat transfer in porous media.

Mohammad Reza Saffarian is an assistant professor in the department of Mechanical Engineering, Shahid Chamran University of Ahvaz. His research interests are in non-Newtonian fluid mechanics, settling tanks, gas tTurbines, and heating, ventilating, and air conditioning.

Rashid Pourrajab is a M.Sc. student in the department of mechanical engineering at Shahid Chamran University of Ahvaz. His research has been mainly focused on the development of new heat transfer enhancement fluid called nanofluids. He is working on modeling, production and experiments with nanofluids.

Mohammad Ghalambaz is currently Ph.D. student in the department of mechanical engineering at Shahid Chamran University of Ahvaz. His research interests are on the field of Nanofluid heat and mass transfer, NEMS actuators and Swarm optimization techniques.

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Noghrehabadi, A., Saffarian, M.R., Pourrajab, R. et al. Entropy analysis for nanofluid flow over a stretching sheet in the presence of heat generation/absorption and partial slip. J Mech Sci Technol 27, 927–937 (2013). https://doi.org/10.1007/s12206-013-0104-0

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  • DOI: https://doi.org/10.1007/s12206-013-0104-0

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