Title:Acoustic streaming via a flexible PCB for micropumping applicationsAuthor(s):Marcus Hintermüller, Bernhard Jakoby, Erwin ReichelAbstract:We present a microfluidic device for moving a fluid in a ring-shaped channel that utilizes boundary layer driven acoustic streaming as its driving mechanism. One wall of the channel is made of a flexible material and acts as the acoustic source. To help in the design process, a numerical study based on perturbation theory was conducted. A flexible printed circuit board is used as an actuator, which is excited magnetically using Lorentz forces to introduce a flexural travelling wave. The resulting streaming velocity is measured using particle tracking velocimetry and its dependence on the deflection amplitude is identified to verify the numerical results.Booktitle:Procedia Engineering, Series Eurosensors 2016Page Reference:page 856-859, 4 page(s)Publishing:9/2016Series:Procedia EngineeringVolume:168