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디지털화상처리에 의한 음장의 가시화기법개발에 관한 연구
도덕희,김동혁,강동림 한국해양대학교 해양과학기술연구소 2000 硏究論文集 Vol.9 No.1
A new acoustic field visualization technique is introduced in this study. Small particles of which density is small enough to follow up the air flow are used for the noise field visualization. In order to quantify the noise, PIV(Particle Imaging Velocimetry) has been constructed. When the driving frequency is in the vicinity of the resonance frequency of the simplified 2-dimensional muffler system, an acoustic streaming is shown and of which velocity distribution is obtained through PIV technique. It is experimentally proved that the present technique is able to visualize and quantify the acoustic fields.