title   
  

Numerical simulations of a traveling plane-wave actuator for microfluidic applications

Tabak, Ahmet Fatih and Yeşilyurt, Serhat (2006) Numerical simulations of a traveling plane-wave actuator for microfluidic applications. In: COMSOL Users Conference 2006, October 22-24, 2006,

This is the latest version of this item.

[img]
Preview
PDF - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
557Kb

Abstract

Continuous forming and propagation of large planar deformations on a thin solid elastic film can create propulsion when the film is immersed in a fluid. Microscopic organisms such as spermatozoa use similar mechanisms to propel themselves. In this work, we present a numerical analysis of the effect of traveling plane-wave deformations on an elastic-film actuator within a fluid medium inside a channel. In particular, we analyzed a micropump that consists of a wave actuator, which is placed in a channel to pump the fluid in the direction of the planedeformation waves. The unsteady flow over the moving boundary between the parallel plates has very low Reynolds number, and, hence, is modeled using the two-dimensional time-dependent Stokes equations. The fluid-structure interaction due to moving boundary is modeled with the arbitrary Lagrangian Eulerian (ALE) method incorporating the Winslow smoothing. COMSOL is used to solve two-dimensional timedependent Stokes equations on a deforming mesh, and to carry out simulations of the flow. Effects of the deformation amplitude, wavelength, frequency and channel height on the flow rate are presented.

Item Type:Papers in Conference Proceedings
Uncontrolled Keywords:Micropump; deforming mesh; traveling- wave actuator.
Subjects:Q Science > QA Mathematics
ID Code:1108
Deposited By:Ahmet Fatih Tabak
Deposited On:12 Feb 2007 02:00
Last Modified:14 Dec 2009 15:27

Available Versions of this Item

Repository Staff Only: item control page