NettetAsymmetrically nanostructured surfaces can function as Brownian ratchets, that is, create a bias in mass or energy flows in response to thermal noise or in a more general case, isotropic excitations. Recently, experimental studies have shown that it is possible to induce directional movement of water droplets deposited on a vertically vibrating … NettetIn this video Michael Aranda explains what the Leidenfrost Effect is, and how it can cause liquid to 'levitate'.Hosted by: Michael Aranda-----Like SciSh...
Leidenfrost levitation: beyond droplets. - Abstract - Europe PMC
Nettetapplications, the Leidenfrost effect can provide some advan-tages. For instances, it reduces the hydrodynamic drag of solid submerged into a liquid pool up to 85% upon the presence of the vapor cushion that offers nearly frictionless solid–liquid contact [15], and it transports a droplet on a ratchet surface Nettet22. nov. 2011 · The Leidenfrost effect, where a heated liquid levitates atop its own vapor, has been known for centuries but remains a rich field of study due to its surprising fluid … 22君威
Electrohydrodynamic analysis of bubble burst in large Leidenfrost ...
Nettet3. mar. 2024 · ABSTRACT. We investigate the self-propelled motion of the Leidenfrost droplets on hot surfaces with ratchet like topology. It is found that on hot ratchet … Nettet27. jun. 2024 · A Leidenfrost drop is capable of self-propelling on a ratchet, which consists of asymmetric teeth. In this work, the corresponding movements were first experimentally investigated. Because the detected motion could not be interpreted using existing propulsive mechanisms, a new propulsive mechanism w … Nettet15. okt. 2013 · Fast & Scalded: Capillary Leidenfrost Droplets on micro-Ratchets Alvaro 72 subscribers 6.7K views 9 years ago By Alvaro G. Marin, Daniel Arnaldo del Cerro, … 22周胎儿发育标准