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125cc급 모터사이클용 머플러 내부 유동특성에 관한 연구A Study on Flow Characteristics in Muffler for 125cc Grade Motorcycle
- Other Titles
- A Study on Flow Characteristics in Muffler for 125cc Grade Motorcycle
- Issue Date
- 2012
- Publisher
- 한국생산제조학회
- Keywords
- Muffler; Exhaust gas; Pulsation pressure; Baffle; 머플러; 배기가스; 맥동압력; 격판
- Citation
- 한국생산제조학회지, v.21, no.2, pp 196 - 201
- Pages
- 6
- Indexed
- KCI
- Journal Title
- 한국생산제조학회지
- Volume
- 21
- Number
- 2
- Start Page
- 196
- End Page
- 201
- ISSN
- 2508-5093
2508-5107
- Abstract
- This study represents numerical study on the thermal and fluid flow characteristics of exhaust gas in a motorcycle muffler. The engine generates 125cc of displacement. Numerical analysis with computational fluid dynamics(CFD) was carried out to investigate the exhaust gas that flow into a motorcycle muffler. The STAR-CD S/W used to analyze three dimensional steady state and transient in a muffler. The Navier-Stokes Equation is solved with SAMPLE and PISO method in cartesian coordinates system. As the numerical result, it could be confirmed pulsating pressure generated from inlet of muffler become closer to the atmospheric pressure through baffle. Also the numerical result was almost identical to experimental result and, through the comparison, the reliability of numerical result was confirmed.
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