Proceedings of the Korean Society of Precision Engineering Conference (한국정밀공학회:학술대회논문집)
- 2005.06a
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- Pages.1472-1477
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- 2005
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- 2005-8446(pISSN)
A study on the inner flow fields characteristics of the semi-active muffler
반능동형 머플러 내부의 유동장특성에 관한 연구
- Park K.S. (College of Advanced Technology, KHU) ;
- Heo H.S. (Korea Automotive Technology Institute) ;
- Park S.J. (Dept. Mech. Eng., KHU) ;
- Kim D.H. (Dept. Mech. Eng., KHU) ;
- Han C.P. (Dept. Mech. Eng., KHU) ;
- Son S.M. (Dept. Mech. Eng., KHU)
- 박경석 (경희대 테크노공학대학) ;
- 허형석 (자동차 부품연구원) ;
- 박세종 (경희대 기계공학과) ;
- 김동현 (경희대 기계공학과) ;
- 한창평 (경희대 기계공학과) ;
- 손성만 (경희대 기계공학과)
- Published : 2005.06.01
Abstract
Recently, the performance development of the exhaust system of a car is very important. The most important part of parts that constructing the exhaust system of a car is a muffler. The muffler reducing the exhaust noise from the engine influence on the engine performance directly. The inner parts of the muffler construct with the baffle and perforated pipes and so on. In the recent study, the study to design the semi-active muffler sensing the exhaust gas pressure controlling the back pressure variably with a EVV progress activity. So that the inner parts of the muffler show the complicated turbulent flow phenomena because of pulsatile flow from the engine and the structural properties and so on. The qualitative and quantitative analysis about the turbulent flow phenomena of the inner parts of the muffler is required gradually. In this study, to analysis the flow field of the inner parts of the muffler, analysis results with the PIV measurement to be able to analysis the variable change of the time and the space. Therefore, try to show the design variables to need to design the inner parts of a muffler of a car.