The Dynamics of Periodically Forced Prolate Spheroids in a Quiescent Newtonian Fluid with Weak Inertia

Files
TR Number
Date
2010-03-20
Journal Title
Journal ISSN
Volume Title
Publisher
Virginia Tech Department of Materials Science and Engineering
Abstract

The effects of convective and unsteady inertia on the dynamics of periodically forced neutrally buoyant prolate spheroids in a quiescent Newtonian fluid medium, at low Reynolds numbers have been modeled. The resulting nonlinear equations have been solved using appropriate numerical methods. Several tests including a perturbation analysis are performed to validate results. A preferred direction, which is identified as the initial direction of motion, is observed that manifests itself in the properties of the solution. Results of the behavior of various parameters with respect to the Reynolds number, aspect ratio of the spheroid and the amplitude of the periodic force are presented. The results are technologically important as they may lead to insights in the development of active dampeners and smart fluids.

Description
Keywords
Materials Science, Low Reynolds Number, Quiescent Fluid
Citation
Kumar, P.V., 2010. The Dynamics of Periodically Forced Prolate Spheroids in a Quiescent Newtonian Fluid with Weak Inertia. Journal of Undergraduate Materials Research, 4. DOI: http://doi.org/10.21061/jumr.v4i0.1560