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Journal of Applied Sciences and Environmental Management
World Bank assisted National Agricultural Research Project (NARP) - University of Port Harcourt
ISSN: 1119-8362
Vol. 11, No. 2, 2007, pp. 209-214
Bioline Code: ja07050
Full paper language: English
Document type: Research Article
Document available free of charge

Journal of Applied Sciences and Environmental Management, Vol. 11, No. 2, 2007, pp. 209-214

 en Effects Of Permeability And Radiation On The Stability Of Couette Flow In A Porous Medium
Ngiangia, Alalibo T. & Nduka, Wonu

Abstract

A study on the effects of permeability and radiation on the stability of couette flow in a porous medium was carried out. The pressure differential of the equation of motion is kept constant in the Navier-Stokes equation and solution developed by the method of undetermined coefficients.It was observed that radiation and permeability has, independently destabilizing effect on the stability of couette flow. At high wave numbers (a ≤ 10) and Reynolds number (Re ≥ 2500), instability sets in but at wave numbers (a ≤ 5) stability was not affected. However, within the same range of values, radiation effect was prominent.

 
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