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Title Acoustic radiation in microfluidic systems
Author Jensen, Thomas Glasdam (MIC- Department of Micro and Nanotechnology, Technical University of Denmark, DTU, DK-2800 Kgs. Lyngby, Denmark)
Supervisor Bruus, Henrik (MIC- Department of Micro and Nanotechnology, Technical University of Denmark, DTU, DK-2800 Kgs. Lyngby, Denmark)
Institution Technical University of Denmark, DTU, DK-2800 Kgs. Lyngby, Denmark
Thesis level Master's thesis
Year 2007
Abstract As the Lab-On-a-Chip systems becomes increasingly sophisticated, so does the demands to the embedded tools. This is why acoustic manipulation gain increasingly attention around the micro°uidic community. Recent research have shown that carefully designed acoustic actuators can be used for both particle handling and mixing. Most research in the micro-acousto-°uidic ¯eld is base on trial and error, as no well-developed theory exists in this area. In this thesis we use perturbation theory to investigate the theory behind the acoustic radiation force, and the equations describing the acoustic streaming °ow-patterns. It shows that the absolute amplitude of the acoustic radiation force is di±cult to determine. How- ever, the calculated shape of the force corresponds very well to what have been reported by experimentalists. The same thing is the case for the calculated streaming-patterns. The shape of the patterns match the experimental ones very well, but the amplitude becomes several magnitudes larger than physical possible.
Pages 117
Admin Creation date: 2007-11-06    Update date: 2008-02-08    Source: dtu    ID: 205612    Original MXD