Microscale Thermal Bubble Formation: Thermophysical Phenomena and Applications
نویسنده
چکیده
Th is work addresses the thermophysica l ph enomena of bubble formation by u sin g solid -state m icroh eaters and recommends specific d irections for fu tu re application s. Microscale bubble formation has become an im portan t actuation mechan ism for m icroflu id ic mach in es in the ( ) emerging field of m icroelectrom echan ica l system s MEMS . Characterization of m icrobu bble formation mechan ism s leads to n ew scien tific research in m icroscale h eat tran sfer and prov ides design guidelin es for bubble-powered m icrom ach ines. A rev iew of theoretical bases describin g h eat transfer processes of solid-s tate m icroheaters is followed by a discu ssion of the thermophysica l ph enomena of m icrobu bble nucleation mechan ism s. Engin eerin g challen ges are illu strated with existin g and potentia l applica tion s in clu din g in k-jet prin ters, m icrobu bble-powered mechanical actuators, m icrobu bble v alv es, and m icrobu bble pumps.
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