WASET 2010 , 2010-02-24

Title : ( unsteady flow between two concentric rotating spheres along with uniform transpiration )

Authors: O. Mahian , Asgar Bradaran Rahimi , Ali Kianifar , A. Jabari Moghadam ,

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In this study, the numerical solution of unsteady flow between two concentric rotating spheres with suction and blowing at their boundaries is presented. The spheres are rotating about a common axis of rotation while their angular velocities are constant. The Navier-Stokes equations are solved by employing the finite difference method and implicit scheme. The resulting flow patterns are presented for various values of the flow parameters including rotational Reynolds number , and a blowing/suction Reynolds number . Viscous torques at the inner and the outer spheres are calculated, too. It is seen that increasing the amount of suction and blowing decrease the size of eddies generated in the annulus.

Keywords

, Concentric spheres, numerical study, suction and blowing, Unsteady flow, Viscous
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@inproceedings{paperid:1013704,
author = {O. Mahian and Bradaran Rahimi, Asgar and Kianifar, Ali and A. Jabari Moghadam},
title = {unsteady flow between two concentric rotating spheres along with uniform transpiration},
booktitle = {WASET 2010},
year = {2010},
location = {Penang},
keywords = {Concentric spheres; numerical study; suction and blowing; Unsteady flow; Viscous torque},
}

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%0 Conference Proceedings
%T unsteady flow between two concentric rotating spheres along with uniform transpiration
%A O. Mahian
%A Bradaran Rahimi, Asgar
%A Kianifar, Ali
%A A. Jabari Moghadam
%J WASET 2010
%D 2010

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