Paper Title
Experimental investigation of cavitational bubble dynamics under multi-frequency system
Keywords
- Acoustic Emission Spectra
- Cavitational Bubble Dynamics
- Mono-Frequency Cavitation
- Multi-Frequency Cavitation
- Acoustic Sources
- Bubble Oscillation
- Cavity Dynamics
- Sono-Chemical Yield
- Dual-Frequency Waves
- Triple-Frequency Waves
- Cavitating Bubbles
- Collapsing Intensity
- Reactor Volume Utilization
- Resonating Cavitation
- Pressure Signal Decomposition
- Hydrophone Measurements
- FFT Power Spectrum
- Inverse Fourier Reconstruction
- Cavitation Phenomena
- Ultrasonic Reactors
- Sonochemistry
- Nonlinear Acoustics
- Bubble Collapse Intensity
- Frequency Domain Analysis
- Acoustic Wave Interaction
- Multi-Frequency Acoustic Sources
Journal
Research Impact Tools
Publication Info
Volume: 15 | Issue: 4 | Pages: 578-589
Published On
April, 2008
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Abstract
Acoustic emission spectra measurements have been carried out under mono and multi-frequency acoustic sources to understand the fundamental difference in bubble/cavity dynamics. The effect of introducing the dual and triple frequency acoustic waves of different frequency on the sono-chemical yield has also been investigated experimentally. The introduction of a second wave has increased the number of cavitating bubbles and as well as the collapsing intensity of cavities resulting into higher sono-chemical yield, and better effective utilization of reactor volume with a large number of resonating cavitating bubbles. To get the information about the intensity of each of the cavity oscillating events, decomposition of the pressure signal measured by the hydrophone in the frequency domain of the FFT power spectrum has been carried out. Inverse fourier reconstruction technique, has been used to elaborate the dynamics of the cavitating bubbles in the multi-frequency system.
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