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김종태(J.T.Kim),김후증(H.J.Kim),김용모(Y.M.Kim),류명석(M.S.Lyu),구영곤(Y.K.Koo) 한국자동차공학회 1995 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1995 No.11_2
Expansion chambers are widely used in automotive intake and exhaust silencer systems due to their broadband noise attenuation characteristics. The present study is aiming to examine the transmission loss characteristics of the expansion chamber type mufflers with the pulsating flows. In order to achieve a grid flexibility for complex geometry, this study employs the unstructured mesh algorithm in context with the node-centered finite volume method The present approach has been validated by comparison with the experimental data and axisymetric analytic solutions for concentric expansion chambers<br/>