Flow generated due to longitudinal and torsional oscillations of a circular cylinder with suction/injection in a micropolar fluid

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Published: Sep 30, 2012
DOI: https://doi.org/10.5556/j.tkjm.43.2012.614
Keywords:
Micropolar fluid Longitudinal and Torsional oscillations Drag micro-rotation suction and injection

Main Article Content

Ramana Murthy Venkata Josyula
National Institute of Technology, Warangal
Nagaraju Gajjela
National Institute of Technology, Warangal
Muthu Poosnar
National Institute of Technology, warangal

Abstract

The flow generated by performing longitudinal and torsional oscillations of a porous circular cylinder which is subjected to constant suction/injection at the surface of the porous cylinder is studied. A finite difference method is proposed to analyse the velocity components and micro-rotation components, in an infinite expanse of an incompressible micropolar fluid. The effects of cross viscosity parameter, couple stress parameter, Reynolds number and Gyration parameter on the axial and torsional velocity components and on the micro-rotation components are shown graphically. Drag force acting on the wall of the cylinder is derived and the effects of micropolar parameters and suction parameter on the drag are shown graphically.

Article Details

How to Cite
Josyula, R. M. V., Gajjela, N., & Poosnar, M. (2012). Flow generated due to longitudinal and torsional oscillations of a circular cylinder with suction/injection in a micropolar fluid. Tamkang Journal of Mathematics, 43(3), 339–356. https://doi.org/10.5556/j.tkjm.43.2012.614
Issue
Vol. 43 No. 3 (2012)
Section
Papers
Author Biographies

Ramana Murthy Venkata Josyula, National Institute of Technology, Warangal

Associate Professor,

Department of Mathematics

Nagaraju Gajjela, National Institute of Technology, Warangal

Research Scholar, Dept. of Mathematics

Muthu Poosnar, National Institute of Technology, warangal

Assistant Professor, Dept. of Mthematics

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