Investigation of Sphere Acceleration in Viscous Flow with Added Mass at Steady- Unsteady Cases

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Abstract:
In this study, accelerating motion of a sphere in incompressible fluid has been nvestigated by the Navier-Stokes equations. The motion is set in a small time interval, having the constant velocities out of it.The laminar and unsteady flow has been solved in various Reynolds numbers. In a short moment the Reynolds number is rised which cause large variations in the drag force. This method is applicable to other accelerating motions such as oscillation and also spherical submarines.
Language:
Persian
Published:
Journal of Mechanical Engineering, Volume:44 Issue: 1, 2015
Pages:
67 to 72
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