The physics and mechanism of sheet/cloud cavitation in a convergent–divergent channel are investigated using synchronized dynamic surface pressure measurement high-speed imaging water tunnel to probe the cavity shedding mechanism. Experiments conducted at fixed Reynolds number Re = 7.8 × 10 5 for different values σ between 1.20 0.65, ranging from intermittent inception cavitation, sheet quasi-p...

This article presents the feasibilities of bacterial disintegration using ultrasonic atomization. Ultrasound creates acoustic cavitation, which by its effects represents a high gradient pressure in form shock wave and local force effect. In our case, excitation produces fine micron mist 3 micrometers. The generated microcavities create cavitation cloud that is able to disintegrate foam-forming ...

In this paper, a Lagrangian-Eulerian (LE) two-way coupling model is developed to numerically study the cavitation bubble cloud. model, gas-liquid mixture treated directly as continuous and compressible fluid governing equations are solved by methods in Eulerian descriptions. An isobaric closure exhibiting better consistency properties applied evaluate pressure of mixture. The dispersed gas/vapo...

This short review provides the current state-of-the-art of in situ coupling of ultrasound to chemical deposition methods. A synergetic action of the ultrasound and light radiation or electrical fields may result in new powerful methodologies, and these include sonophotodeposition and sonoelectrodeposition processes. The effect of ultrasound is explained on the base of different physical mechani...

This paper provides new physical insight into the coupling between flow dynamics and cavitation bubble cloud behaviour at conditions relevant to both inception more complex phenomenon of “choking” using a multiphase compressible framework. Understanding process parameters that determine its break-off frequency is important for control phenomena such as structure vibration erosion. Initially, ro...