Proceedings of the Korean Society of Propulsion Engineers Conference (한국추진공학회:학술대회논문집)
- Volume y2005m4
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- Pages.291-298
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- 2005
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- 1975-342X(pISSN)
A Study on the Acoustic Damping Characteristics of Acoustic Cavities in a Liquid Rocket Engine
로켓엔진에서 음향공의 음향학적 감쇠능력에 대한 고찰
- Published : 2005.04.01
Abstract
Linear acoustic analysis has been performed to elucidate damping characteristics of acoustic cavities. Results have shown that resonant frequencies of acoustic cavity obtained by classical theoretic approach and present linear analysis are somewhat different from each other. This difference is due to the limitation of classical theory. To quantify the damping characteristics, acoustic impedance has been introduced and resultant absorption and conductance have been evaluated. Satisfactory agreement has been achieved with previous experiment. Finally the design procedure for optimal tuning of acoustic cavity has been established
고주파 연소불안정 제어를 위하여 사용되는 음향공에 대하여, 3차원 선형 음향해석을 수행하여 음향공의 감쇠 능력을 정량화하고자 하였다. 공진주파수는 상온에서 고전적 이론에 의한 공진주파수와 약
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