Microtextured superhydrophobic surfaces have shown potential in friction reduction applications and could be poised to make a significant impact in thermal management applications. The purpose of this paper is to account for the thermal effects of the heated fluid flowing in superhydrophobic microfluidic channels. Through microscopic observation and flow rate measurements it was observed that (1) heating may prolong the Cassie state even under elevated pressure drops by increasing the temperature in the gas layer and that (2) excessive heating may pinch the microchannel flow due to the air layer invading into the liquid layer.
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