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Comments on the paper “A study of induced magnetic field with chemically reacting and radiating fluid past a vertical permeable plate” by S. Ahmed

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References

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Authors and Affiliations

  1. Mathematics Group, Birla Institute of Technology & Science, Pilani-333031, Rajasthan, India

    Bhupendra Kumar Sharma

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  1. Bhupendra Kumar Sharma
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Correspondence to Bhupendra Kumar Sharma.

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REPLY TO THE COMMENTS

First of all, I would like to express my gratitude for the critical comments on my paper and to apologize for the following errors in it:

In place of the Eckert number Ec that is mistakenly mentioned in the paper, a parameter of expansion (perturbation parameter) ε should be used, where 0 < ε < 1.

During the calculations, the condition Pm > M (where M is the Hartmann number) or Pm >> 1 was mistakenly omitted. However, the discussed paper is essentially based on the works [1–4], whose authors also considered the values of the magnetic Prandtl number significantly below unity and used values of the Prandtl number equal to 0.71 and 7. Thus, I cannot agree with the conclusion on the absence of practical significance of the paper.

References

1. N. G. Kafousias, Magnetohydrodynamic free convective effects on the Stokes problem for an incompressible viscous fluid past an infinite vertical limiting surface, Astrophys. Space Sci., 85, 297–307 (1982).

2. A. Raptis, C. Perdikis, and A. Leontitsis, Effects of radiation in an optically thin gray gas flowing past a vertical infinite plate in the presence of a magnetic field, Heat Mass Transf., 39, 771–773 (2003).

3. Md. Mahmud Alom, Md. Rafiqul Islam, and Fouzia Rahman, Steady heat and mass transfer by mixed convection flow from a vertical porous plate with induced magnetic field, constant heat and mass fluxes, Thammasat Int. J. Sc. Tech., 13, No. 4, 1–13 (2008).

4. Krishna Gopal Singha and P. N. Deka, Skin friction for unsteady free convection MHD flow between two heated vertical parallel plates, Theor. Appl. Mech., 33, No. 4, 259–280 (2006).

Published in Inzhenerno-Fizicheskii Zhurnal, Vol. 86, No. 1, pp. 238–239, January–February, 2013.

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Sharma, B.K. Comments on the paper “A study of induced magnetic field with chemically reacting and radiating fluid past a vertical permeable plate” by S. Ahmed. J Eng Phys Thermophy 86, 255–256 (2013). https://doi.org/10.1007/s10891-013-0827-x

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  • DOI: https://doi.org/10.1007/s10891-013-0827-x

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