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이형식(Hyung-Sik Lee),하지훈(Ji-Hun Ha),반용운(Lyong-Oon Pahn),이상호(Sang-Ho Lee) 한국자동차공학회 2005 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2005 No.11_2
Mufflers assembled in automobiles have general roles to change the high temperature and pressure of the exhaust gas from the engine into a state of low temperature and pressure, so that they improve the engine efficiency and reduce the noise. In this study, for automobile mufflers where the exhaust gas flows with the inlet condition of constant velocity, numerical flow analysis is carried out using steady state turbulent flow conditions, based on the 3D solid model. The maximum velocity inside the muffler is calculated as about 137m/s with the pressure drop between inlet and outlet being 6,275 Pa.