Electrode Cooling Effect on Out-Of-Phase Electrothermal Streaming in Rotating Electric Fields.

ABSTRACT: In this work, we focus on investigating electrothermal flow in rotating electric fields (ROT-ETF), with primary attention paid to the horizontal traveling-wave electrothermal (TWET) vortex induced at the center of the electric field. The frequency-dependent flow profiles in the microdevice are analyzed using different heat transfer models. Accordingly, we address in particular the importance of electrode cooling in ROT-ETF as metal electrodes of high thermal conductivity, while substrate material of low heat dissipation capability is employed to develop such microfluidic chips. Under this circumstance, cooling of electrode array due to external natural convection on millimeter-scale electrode pads for external wire connection occurs and makes the internal temperature maxima shift from the

SUBMITTER: Liu W 

PROVIDER: S-EPMC6190253 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature