A review of microscopic interactions between cavitation bubbles and particles in silt-laden flow

Yuning Zhang, Yuning Zhang, Zhongdong Qian, Bin Ji and Yulin Wu

Renewable and Sustainable Energy Reviews, 2016, vol. 56, issue C, 303-318

Abstract: Erosion through synergetic effects between cavitation erosion and particle abrasion in silt-laden flow seriously affects the safe operations of hydroturbines. In this review, recent advances of cavitation inception on particles and microscopic interactions between bubbles and particles are reviewed and discussed. For cavitation inception, influences of several paramount parameters (e.g. types, sizes, shape and surface structure of particles, pressurization and memory effects) have been revealed and discussed. The interaction mechanisms between cavitation bubbles and particles are demonstrated using experimental data obtained with a single particle. Through the microscopic interactions, the particles can be accelerated by the collapsing bubbles up to 40m/s and also be possibly split up by the cavitation, leading to deagglomeration of particle clusters.

Keywords: Cavitation erosion; Particles; Abrasive erosion; Deagglomeration; Cavitation inception; Silt-laden flow (search for similar items in EconPapers)
Date: 2016
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Citations: View citations in EconPapers (9)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:rensus:v:56:y:2016:i:c:p:303-318

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DOI: 10.1016/j.rser.2015.11.052

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