Cavitation behind a circular micro pillar

Fundamentals, biomedical applications and future potential of micro-scale cavitation-a review

“…Hydrodynamic cavitation in microfluidic devices occurs when the fluid flow experiences a considerable static pressure drop when it passes through a flow restrictive element inside a microchannel. In this regard, different geometries (micro-orifices, 15 micro-Venturis, 28,64 micro-diaphragms, 28,64 micro-pillar, 65 micro-steps 46 ), functional surfaces (hydrophilic or hydrophobic, 50 roughen or patterned 66 ), working fluids (isotropic or anisotropic, 67 pure or impure, 28,68 mixtures 29 ) were utilized to characterize various micro-scale cavitation flow patterns. In a pioneering study, Mishra et al 15 developed the first microfluidic device to study micro-scale cavitation using water as the working fluid.…”

Strive to Reduce Slurry Erosion and Cavitation in Pumps through Flow Modifications, Design Optimization and Some Other Techniques: Long Term Impact on Process Industry

“…It is also highlighted that transient cavitation conditions have a strong influence on the flow past in the impeller path. Nayebzadeh et al [ 41 ] conducted experiments to study hydrodynamic cavitation in a micro channel containing a pillar. A high speed camera is utilized to capture the flow behavior.…”

“… ( a ) Rapid velocity values near the pillar at Re = 2060, t = 0.07 s, ( b ) zoomed view of secondary flow zone on pillar [ 41 ]. …”

Localization and quantification of radical production in cavitating flows with luminol chemiluminescent reactions

“…Finally, the microfluidic channels can often ease the implementation of optical probing methods. In spite of these advantages, the research field on the topic of cavitation in microchannels involves only a few groups [33] , [34] , [35] , [36] , [37] , [38] , [39] , [40] , [41] , [42] , [43] , [44] , [45] , [46] , [47] , [48] , [49] , [50] , [51] , [52] , [53] , [54] , [55] , [56] , [57] , [58] , [59] , [60] , [61] .…”