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Entropy generation in nonlinear mixed convective flow of nanofluid in porous space influenced by Arrhenius activation energy and thermal radiation

  • Fawaz E. Alsaadi
  • Ikram UllahEmail author
  • T. Hayat
  • Fuad E. Alsaadi
Article

Abstract

Here, nonlinear mixed convective flow of nanomaterials over a porous stretching sheet is discussed. The Buongiorno model is used in the mathematical modeling. Important aspects of Buongiorno model, i.e., Brownian movement and thermophoresis are addressed. Further impact of activation energy, viscous dissipation, Joule heating and nonlinear thermal radiation retained in energy and concentration expressions. Optimization of entropy generation rate is discussed. The governing systems are modeled through dimensionless variables. The series solutions are constructed via OHAM algorithm. Features of various sundry variables are interpreted and deliberated. Our analysis reveals that entropy enhances via higher estimation of Reynolds number, radiation and magnetic variables. Our analysis reveals that Bejan number shows decaying feature via Brinkman number and magnetic parameter.

Keywords

Entropy generation Activation energy Nanomaterials Thermal radiation Nonlinear mixed convection 

Notes

Acknowledgements

This project was funded by the Deanship of Scientific Research (DSR) at King Abdulaziz University, Jeddah, under grant no. (RG-7-135-40). The authors, therefore acknowledge with thanks DSR for technical and financial support.

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2019

Authors and Affiliations

  • Fawaz E. Alsaadi
    • 1
  • Ikram Ullah
    • 4
    Email author
  • T. Hayat
    • 2
    • 3
  • Fuad E. Alsaadi
    • 3
  1. 1.Department of Information Technology, Faculty of Computing and Information TechnologyKing Abdulaziz UniversityJeddahSaudi Arabia
  2. 2.Department of MathematicsQuaid-I-Azam UniversityIslamabadPakistan
  3. 3.Department of Electrical and Computer Engineering, Faculty of EngineeringKing Abdulaziz UniversityJeddahSaudi Arabia
  4. 4.Department of Humanities, FAST NUCES Peshawar CampusKhyber Pakhtunkhwa (KPK)Pakistan

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