http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
조장형(JH CHO),원영수(YS WON),조규수(KS CHO) 한국자동차공학회 1998 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1998 No.5_1
A 3-dimensional flow analysis in a muffler considering pulsating pressure of exhaust gas has been conducted to provide a pressure data for noise reduction. The CFD analysis of a unit area of porous materials also conducted for determining the permeability of perforated inlet pipe and baffle plates. The pulsating velocity of exhaust gas was assumed for three case conditions. The STAR-CD S/W used for the three dimensional unsteady state CFD analysis in a muffler. The pulsating pressure amplitude was decreased in an outlet pipe of muffler. About 80% pressure drop was obtained between inlet pipe and out pipe. For a practical application, temperature calculation in a muffler has to conducts.<br/>