Hemiwicking is the phenomena where a liquid wets a textured surface beyond its intrinsic wetting length due to capillary action and imbibition. In this work, we derive a simple analytical model for hemiwicking in micropillar arrays. The model is based on the combined effects of capillary action dictated by interfacial and intermolecular pressures gradients within the curved liquid meniscus and fluid drag from the pillars at ultralow Reynolds numbers
Thin film evaporation is a widelyused thermal management solution for micro/nanodevices with high energy densities. Local measurements of the evaporation rate at a liquidvapor interface, however, are limited. We present a continuous profile of the evaporation heat transfer coefficient (
 Publication Date:
 NSFPAR ID:
 10387854
 Journal Name:
 Scientific Reports
 Volume:
 12
 Issue:
 1
 ISSN:
 20452322
 Publisher:
 Nature Publishing Group
 Sponsoring Org:
 National Science Foundation
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