Journal Article

·2013

Unsteady Flow Produced by Oscillations of Two Rotating Coaxial Disks

H. Volkan Ersoy YTU

International Review of Mechanical Engineering (IREME)

Abstract

While the disks having the same angular velocity are initially rotating about a common axis, the unsteady flow produced by their oscillations in their own planes and in the opposite directions is investigated. It is shown that the solutions for all times are obtained by means of the analytical solutions corresponding to small and large times. The dependence of the velocity field on the time, the kinematic viscosity of the fluid, the angular velocity and gap of the disk, the frequency and velocity amplitude of the oscillation is examined in terms of the appropriate dimensionless parameters. It is observed how the periodic motion of the fluid takes place when the time is large enough.

Keywords

Oscillation (cell signaling) Angular velocity Physics Mechanics Dimensionless quantity Coaxial Kinematics Amplitude Flow (mathematics) Flow velocity Classical mechanics Vector field Field (mathematics) Optics Mathematics

Subject Areas

Fluid Dynamics and Vibration Analysis ·Computational Mechanics ·Physical Sciences
Fluid dynamics and aerodynamics studies ·Computational Mechanics ·Physical Sciences
Geomagnetism and Paleomagnetism Studies ·Molecular Biology ·Life Sciences