Simulation-based analysis of flow due to traveling- plane-wave deformations on elastic thinfilm actuators in micropumps
Tabak, Ahmet Fatih and Yeşilyurt, Serhat (2007) Simulation-based analysis of flow due to traveling- plane-wave deformations on elastic thinfilm actuators in micropumps. (Accepted/In Press)
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One of the propulsion mechanisms of microorganisms is based on propagation of bending deformations on an elastic tail. In principle, an elastic thin-film can be placed in a channel and actuated for pumping of fluids by means of introducing a series of traveling-wave deformations on the film. Here, we present a simulationbased analysis of transient two-dimensional Stokes flow induced by propagation of sinusoidal deformations on an elastic thin-film submerged in a fluid between parallel plates. Simulations are based on a numerical model that solves timedependent Stokes equations on deforming mesh, which is due to the motion of the thin-film boundary and solved with the arbitrary Lagrangian Eulerian (ALE) method. Effects of the wavelength, frequency, amplitude and channel's height on the time-averaged flow rate and the rate-of-work done on the fluid by the thinfilm are demonstrated and grouped together as the flow-rate and power parameters to manifest a combined parametric dependence.
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