Unsteady flow of a micropolar fluid generated by a circular cylinder subject to longitudinal and torsional oscillations | Zendy

G. Nagaraju | Zendy; Murthy Ramana | Zendy

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Unsteady flow of a micropolar fluid generated by a circular cylinder subject to longitudinal and torsional oscillations

Author(s) -

G. Nagaraju,

Murthy Ramana

Publication year - 2014

Publication title -

theoretical and applied mechanics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.279

H-Index - 6

eISSN - 2406-0925

pISSN - 1450-5584

DOI - 10.2298/tam1401071n

Subject(s) - drag , mechanics , cylinder , potential flow around a circular cylinder , reynolds number , physics , gyration , flow (mathematics) , transverse plane , classical mechanics , angular velocity , rotation (mathematics) , slip (aerodynamics) , mathematics , turbulence , geometry , thermodynamics , structural engineering , engineering

The flow generated by a circular cylinder, performing longitudinal and torsional oscillations, in an infinite expanse of a micropolar fluid is studied. Analytical expressions for the velocity and micro rotation components are obtained using no slip and hyper stick conditions at the boundaries. The effects of coupling number; Reynolds number and gyration parameter on the transverse and axial velocity components are shown and explained graphically. Also explicit expression for the drag force acting on the wall of the cylinder is derived and the effects of pertinent parameters on the drag are shown graphically

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