Ballistic Brownian motion of supercavitating nanoparticles

Dezhao Huang, Jarrod Schiffbauer, Eungkyu Lee, Tengfei Luo

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

We show that the Brownian motion of a nanoparticle (NP) can reach a ballistic limit when intensely heated to form supercavitation. As the NP temperature increases, its Brownian motion displays a sharp transition from normal to ballistic diffusion upon the formation of a vapor bubble to encapsulate the NP. Intense heating allows the NP to instantaneously extend the bubble boundary via evaporation, so the NP moves in a low-friction gaseous environment. We find the dynamics of the supercavitating NP is largely determined by the near field effect, i.e., highly localized vapor phase property in the vicinity of the NP.

Original languageEnglish
Article number042104
JournalPhysical Review E
Volume103
Issue number4
DOIs
Publication statusPublished - Apr 2021

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