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Soret and Dufour effects on hydromagnetic flow of viscoelastic fluid over porous oscillatory stretching sheet with thermal radiation

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Abstract

The thermal-diffusion and diffusion-thermo effects on magnetohydrodynamic viscoelastic flow of second grade fluid over porous oscillatory stretching sheet with thermal radiation are analyzed. The dimensionless nonlinear partial differential equations are solved by means of homotopy analysis method. The effects of various parameters on velocity, temperature and concentration distributions are investigated and discussed in detail. It is found that temperature increases by increasing Dufour number. The concentration field is enhanced by increasing Soret number while it decreases with Schmidt number. Moreover, the numerical values of effective local Nusselt number and local Sherwood number are calculated and illustrated through tables.

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Acknowledgments

We are thankful to the anonymous reviewer for his/her useful comments to improve the earlier version of the paper. The second author is grateful to the Higher Education Commission of Pakistan for financial assistance.

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Correspondence to S. U. Khan.

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Technical Editor: Roney Leon Thompson.

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Ali, N., Khan, S.U., Abbas, Z. et al. Soret and Dufour effects on hydromagnetic flow of viscoelastic fluid over porous oscillatory stretching sheet with thermal radiation. J Braz. Soc. Mech. Sci. Eng. 38, 2533–2546 (2016). https://doi.org/10.1007/s40430-016-0506-x

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  • DOI: https://doi.org/10.1007/s40430-016-0506-x

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