Effects of acoustic-streaming-induced flow in evaporating nanofluid droplets
作者： Abhishek Saha , Saptarshi Basu , Ranganathan Kumar
DOI: 10.1017/JFM.2011.505
关键词:
摘要: We study the effect of acoustic streaming on nanoparticle motion and morphological evolution inside an acoustically levitated droplet using analytical approach coupled with experiments. Nanoparticle migration due to internal recirculation forms a density stratification, location which depends initial particle concentration. The time scale stratification is similar that perikinetic-driven agglomeration flocculation. ultimately leads force imbalance leading unique bowl-shaped structure. Our analysis shows mechanism bowl formation how it affected by size, concentration, fluid viscosity.
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