Abstract
Simulation of noise spectrum from the cavitation bubble have been calculated. The simulation assumed a bubble with radius of 10 in the change of liquid static pressure. The equation used to simulate the bubble radial motion is the Keller-Miksis equation. The spectrum was generated from the pressure pulse results from 10-12 s to 0.01 s and sampling frequency of 2 MHz. The result shows that cavitation bubble produced noise at higher frequency region. The noise is relatively flat up to 10 kHz. From 10 kHz to 20 kHz the noise starts to increase gradually.
