국내 최대 기계 및 로봇 연구정보

기술보고서

기술보고서 게시판 내용
타이틀	Dispersion of Sound in Dilute Suspensions with Nonlinear Particle Relaxation
저자	Kandula, Max
Keyword	ACOUSTIC PROPERTIES;; CONDUCTIVE HEAT TRANSFER;; FREQUENCIES;; NONLINEARITY;; PARTICLE THEORY;; WAVE DISPERSION
URL	http://hdl.handle.net/2060/20100036466
보고서번호	KSC-2010-005
발행년도	2010
출처	NTRS (NASA Technical Report Server)
ABSTRACT	The theory accounting for nonlinear particle relaxation (viscous and thermal) has been applied to the prediction of dispersion of sound in dilute suspensions. The results suggest that significant deviations exist for sound dispersion between the linear and nonlinear theories at large values of Omega(Tau)(sub d), where Omega is the circular frequency, and Tau(sub d) is the Stokesian particle relaxation time. It is revealed that the nonlinear effect on the dispersion coefficient due to viscous contribution is larger relative to that of thermal conduction.