Unsteady laminar mixed convection boundary layer flow near a vertical wedge due to oscillations in the free-stream and surface temperature

• Autorzy: Roy N. C. , Hossain A. , Hussain S.

Identyfikatory

DOI

10.1515/ijame-2016-0011

• Języki publikacji: EN

Abstrakty

EN

The unsteady laminar boundary layer characteristics of mixed convection flow past a vertical wedge have been investigated numerically. The free-stream velocity and surface temperature are assumed to be oscillating in the magnitude but not in the direction of the oncoming flow velocity. The governing equations have been solved by two distinct methods, namely, the straightforward finite difference method for the entire frequency range, and the extended series solution for low frequency range and the asymptotic series expansion method for high frequency range. The results demonstrate the effects of the Richardson number, Ri, introduced to quantify the influence of mixed convection and the Prandtl number, Pr, on the amplitudes and phase angles of the skin friction and heat transfer. In addition, the effects of these parameters are examined in terms of the transient skin friction and heat transfer.

Słowa kluczowe

EN

mixed convection; boundary layer flow; vertical wedge; free-stream oscillation

PL

konwekcja mieszana; granica przepływu warstwy; przepływ ciepła

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2016
• Tom: Vol. 21, no. 1
• Strony: 169--186
• Opis fizyczny: Bibliogr. 16 poz., wykr.

Twórcy

autor

Roy N. C.

• Department of Mathematics, University of Dhaka, Dhaka-1000, BANGLADESH

autor

Hossain A.

• Department of Mathematics, University of Dhaka, Dhaka-1000, BANGLADESH

autor

Hussain S.

• Department of Mathematics and Natural Sciences, BRAC University BANGLADESH

Bibliografia

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• [12] Kandasamy R., Muhaimin I. and Khamis A.B. (2009): Thermophoresis and variable viscosity effects on MHD mixed convective heat and mass transfer past a porous wedge in the presence of chemical reaction. – Heat Mass Transf., vol.45, pp.703–712.
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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę