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International Journal of Fluid Mechanics Research
ESCI SJR: 0.206 SNIP: 0.446 CiteScore™: 0.5

ISSN Druckformat: 2152-5102
ISSN Online: 2152-5110

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International Journal of Fluid Mechanics Research

DOI: 10.1615/InterJFluidMechRes.v39.i4.20
pages 301-311

Unsteady/Steady Natural Convection Flow of Reactive Viscous Fluid in a Vertical Annulus

Basant K. Jha
Department of Mathematics, Ahmadu Bello University, Zaria, Nigeria
Ahmad K. Samaila
Department of Mathematics, Ahmadu Bello University Zaria, Nigeria
Abiodun O. Ajibade
Department of Mathematics, Ahmadu Bello University Zaria, Nigeria

ABSTRAKT

This paper presents both analytical and numerical analysis of fully developed unsteady/steady natural convection flow of a reactive viscous fluid in open ended vertical annulus. Analytical expressions for velocity, temperature, skin-friction and rate of heat transfer are obtained after simplifying and solving the governing differential equations with reasonable approximations. The interesting result found in this study is that an increase in non-dimensional time t, increases both temperature and velocity profiles until steady-state value is attained. Subsequent results obtained by numerical calculations show excellent agreement with analytical results.