Dynamics of forced particles in an oscillating flow at low Reynolds numbers

What is it about?

We discuss a solution for the orientation transport of a periodically driven prolate spheroid suspended in Newtonian fluid oscillating in the range of low Reynolds number. A set of integro-differential equations is derived and analyzed in detail. The spheroid dynamics are simulated by varying the system parameters. The properties of the motion of the particle due to external force and the induced hydrodynamic force are investigated with the help of the numerical solution. We observe that the velocity and displacement increase as the system parameters, such as natural frequency, the aspect ratio of the spheroid, and the magnitude of the externally driving periodic force, increase.

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