The particle collision and coalescence n suspension with ultrasonic irradiation

摘要

The displacement effect of particles in suspension with ultrasonic irradiation is discussed and visualized by CCD camera.The experimental and analysis results show that the ultrasonic irradiation has double nature to the stability of suspension.Ultrasonic irradiation can accelerate collision and coalescence when the sound intensity is under the cavitation threshold.Otherwise,it makes the suspension more dissipation and stable.