Visualization of Acoustic Waves and Cavitation in Ultrasonic Water Flow
Hidehisa Usui, Tomoatsu Ishibashi, Hisanori Matsuo, Katsuhide Watanabe, Keita Ando
2021Diffusion and defect data, solid state data. Part B, Solid state phenomena/Solid state phenomena12 citationsDOIOpen Access PDF
Abstract
Visualization experiments were performed to examine whether acoustic bubbles play a role in ultrasonic water flow cleaning, as in convention cleaning with ultrasonic baths. Schlieren visualization confirmed the standing-wave-like acoustic field in ultrasonic water flow that collides with a glass surface. Backlight visualization showed that cavitation bubbles appear in the water flow spreading over the glass surface. These bubbles are found to oscillate in volume and move inside film flow and thus expected to play a role as active cleaning agents.
Topics & Concepts
CavitationMaterials scienceUltrasonic sensorSchlierenFlow visualizationVisualizationAcousticsAcoustic streamingFlow (mathematics)OpticsMechanicsMechanical engineeringEngineeringPhysicsUltrasound and Cavitation PhenomenaMicrofluidic and Bio-sensing TechnologiesFluid Dynamics and Heat Transfer