UNSTEADY FREE-CONVECTION IN BINARY MIXTURE OF A BOUNDARY LAYER FLOW PAST A VERTICAL POROUS PLATE WITH RADIATIVE HEAT TRANSFER

Authors

  • Rabindra Nath Mondal Mathematics Discipline, Khulna University, Khulna 9208, Bangladesh
  • Parimal Chandra Das Department of Mathematics, Dhaka University, Dhaka 1000, Bangladesh
  • Md. Abdus Sattar Department of Mathematics, Dhaka University, Dhaka 1000, Bangladesh

DOI:

https://doi.org/10.53808/KUS.2001.3.1.0103-se

Keywords:

Boundary layer; Heat transfer; Chemical reaction; Binary mixture; Arrhenius activation energy

Abstract

The combined free convection dynamic boundary layer and thermal radiation boundary layer along a semi-infinite vertical porous plate with mass transfer has been analyzed. The chemical reaction for a very simple model of a binary reaction with Arrhenius activation energy is incorporated into the analysis. The fluid is considered to be gray, absorbing-emitting. Under such conditions, the coupled and unsteady non-linear momentum, energy and concentration equations of the combined layers are then made similar by introducing a time dependent length scale and by the usual method of similarity transformation. The similarity equations are then solved numerically by the method of superposition. The resulting velocity and t emperature distributions are shown graphically for different values of the parameters entering into the problem. The numerical values of the skin friction coefficient ( w ) and the Nusselt number (Nu ) are calculated and presented in a tabular form.

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References

Abramowitz, M. and Stegun, I.A., 1972. Handbook of Mathematical Functions. Dorer Pub. Inc., New York.

Alabraba, M.A., Bestman, A.R. and Ogulu, A., 1992. Astrophysics and Space Science, 195: 431.

Bestman, A.R., 1990. The boundary layer flow past a semi-infinite heated porous plate for a two component plasma. International Journal of Energy Research, 14: 389.

Bratis, J.C. and Novotny, J.L., 1973. AIAA Progress Astronomy and Aeronautics, 31, 329.

Cess, R.D., 1966. The interaction of thermal radiation with free convection heat transfer. International Journal of Heat and Mass Trans, 9: 1269.

Goody, R.M., 1956. Journal of Fluid Mechanics, 22: 424.

Jeffreys, H. and Jeffreys, B.S., 1972. Method of Mathematical Physics. Cambridge University Press.

Mansour, M.A., 1990. Radiative effect on the longitudinal streamlines of a semi-infinite plate by a viscoelastic fluid with heat transfer. Astrophysics and Space Science, 168: 177.

Na, T.Y., 1979. Computational Methods in Engineering Boundary Value Problem. Academic Press, New York.

Novotny, J.L., Lloyd, J.R. and Bankston, J.D., 1974. AIAA Paper No.74-753. Academic Press, New York.

Sattar, M.A. and Hossain, M., 1992. Unsteady hydromagnetic free convection flow with hall current and mass transfer along an accelerated porous plate with time dependent temperature and concentration. Canadian Journal of Physics, 70: 369.

Sattar, M.A. and Kalim, M.H., 1996. Unsteady free convection interaction with thermal radiation in a boundary layer flow past a vertical porous plate. Journal of Mathematical and Physical Sciences, 30(1): 25.

Schilchting, H., 1968. Boundary layer Theory. McGraw Hill Book Co. New York.

Sparrow, E.M. and Cess, R.D., 1978. Radiation Heat Transfer-Augmented Edition. Proceedings of the Thermodynamics and Heat Mass Conference, Boston.

Tien, C.L. and Lowder, J.E., 1974. International Journal of Heat and Mass Trans, 9: 698.

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Published

27-05-2001

How to Cite

[1]
R. N. . Mondal, P. C. . Das, and M. A. . Sattar, “UNSTEADY FREE-CONVECTION IN BINARY MIXTURE OF A BOUNDARY LAYER FLOW PAST A VERTICAL POROUS PLATE WITH RADIATIVE HEAT TRANSFER”, Khulna Univ. Stud., pp. 405–411, May 2001.

Issue

Section

Science & Engineering

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