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Radiative heat transfer in Homann stagnation-point flow of hybrid nanofluid

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Abstract

In this paper, we study the heat transfer for \(({\text {Al}}_{{2}}{\text {O}}_{{3}} -{\text {Cu}}/{\text {water}})\) hybrid nanofluid in non-axisymmetric Homann stagnation region by adopting the Tiwari and Das model in the presence of magnetic flux. The importance of nanoparticle shape factor, i.e., cylinder, blades, bricks, and platelets has been studied under the time-independent free stream. Further, the impact of non-linear thermal radiations on the heat transfer process is investigated. The resulting equations representing the physical problem are transformed by adopting the proper variables. Through asymptotic approach, the resultant problem is scrutinized for large-\(\gamma\) (shear-to-strain-rate ratio) through bvp4c technique in MATLAB. The impression of significant parameters for both single nanoparticle and hybrid nanofluid on the flow field, temperature, skin friction and local Nusselt number is reported through tabular and graphical depictions. It is noted that the fluid temperature in the hybrid phase has always been greater than the nanophase.

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Acknowledgements

The authors would like to sincerely appreciate funding from Researchers Supporting Project Number (RSP-2019/58), King Saud University, Riyadh, Saudi Arabia.

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Authors and Affiliations

  1. Department of Basic Sciences, University of Engineering and Technology, Taxila, 47050, Pakistan

    Jawad Ahmed & Azeem Shahzad

  2. College of Mathematics and Statistics, Chongqing University, Chongqing, 401331, P. R. China

    Aamir Farooq

  3. Department of Mathematics, COMSATS University Islamabad, Wah Campus, Islamabad, 47040, Pakistan

    Muhammad Kamran

  4. Sustainable Energy Technologies (SET) Center, College of Engineering, King Saud University, P.O. Box 800, Riyadh, 11421, Saudi Arabia

    Salah Ud-Din Khan

  5. National Tokamak Fusion Program, P.O. Nilore, Islamabad, 45650, Pakistan

    Shahab Ud-Din Khan

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  1. Jawad Ahmed
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  2. Azeem Shahzad
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  3. Aamir Farooq
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  4. Muhammad Kamran
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  5. Salah Ud-Din Khan
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  6. Shahab Ud-Din Khan
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Correspondence to Jawad Ahmed.

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Ahmed, J., Shahzad, A., Farooq, A. et al. Radiative heat transfer in Homann stagnation-point flow of hybrid nanofluid. Appl Nanosci 10, 5305–5314 (2020). https://doi.org/10.1007/s13204-020-01464-1

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