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A numerical study on the heat transfer generated by a piezoelectric transducer in a microfluidic system

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Published 26 November 2012 • Published under licence by IOP Publishing Ltd
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Author e-mails

scatarino@dei.uminho.pt

Author affiliations

1 Algoritmi Center, University of Minho, Portugal

2 CEFT, Department of Chemical Engineering, Faculty of Engineering, University of Porto, Portugal

3 Center/Department of Physics, University of Minho, Portugal

4 To whom any correspondence should be addressed

Citation

S O Catarino et al 2012 J. Phys.: Conf. Ser. 395 012091

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DOI

https://doi.org/10.1088/1742-6596/395/1/012091

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Abstract

The present work describes the modelling of heat transfer produced by the acoustic streaming phenomenon, generated through a piezoelectric transducer in a microagitator. Besides the fluids mixing, this phenomenon also promotes the fluids heating. The numerical approach used in this work comprises three main groups of equations: the piezoelectric, the compressible Navier-Stokes, and the heat transfer equations. It was concluded that the heat transfer due to the acoustic wave propagation, without other external heat sources, is not sufficient to increase significantly the fluid temperature.

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