Journal of the Korea Convergence Society (한국융합학회논문지)

Korea Convergence Society (한국융합학회)
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A Convergent Study on Flow According to the Configuration of Small Car Muffler

소형 자동차의 머플러 형상에 따른 유동에 관한 융합 연구

  • Choi, Kye-Kwang (Department of Metal Mold Design Engineering, Kongju national University) ;
  • Cho, Jae-Ung (Division of Mechanical & Automotive Engineering, Kongju National University)
  • 최계광 (공주대학교 금형설계공학과) ;
  • 조재웅 (공주대학교 기계자동차공학부)
  • Received : 2020.09.02
  • Accepted : 2021.01.20
  • Published : 2021.01.28
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Abstract

The flow analysis by each configuration of automotive muffler in this study was carried out. And it aims at finding the design model that can increase the flow property best. It is shown that model B has the lowest maximum pressure and model C has the largest. Compared with the best flow rate according to the shape of the automotive muffler, model A had the comparatively smooth flow stream at the entrance and exit. However, model B has the largest flow rate in the muffler but the least flow rate in the exit, making it look less efficient. By the flow analysis result according to the muffler configuration, it is thought to design the muffler effectively by looking for the model with more smooth flow. The result of this study can be used to investigate the flow according to the configuration of small car muffler without actual test. It also seems to be helpful in the aesthetic convergent design of small car muffler.

본 연구에서는 자동차 머플러의 형상별 유동해석을 수행하여 가장 유동성을 증가할 수 있는 설계 모델을 찾는 데에 있다. Model B가 최대 압력이 비교적 가장 작게 나오고 Model C가 가장 크게 나왔다. 자동차의 머플러 형상에 따른 최고의 유동 속도를 비교하면 Model A가 비교적 입구 및 출구에서의 유동의 흐름이 원활했다. 그러나 Model B는 머플러 내에서의 유동 속도는 크지만 출구에서는 유동 속도가 가장 적어져서 유동의 효율성은 떨어져 보인다. 머플러의 형상에 따른 유동 해석 결과에 의하여 좀 더 유동이 원활한 모델을 찾음으로서 머플러를 효율적으로 설계할 수 있다고 사료된다. 본 연구 결과를 이용하면 실제 실험을 하지 않아도 소형 자동차의 머플러 형상에 따른 유동을 조사할 수 있다. 또한 소형 자동차의 머플러의 미적인 융합 설계에 도움이 될 수 있다고 보인다.

Keywords

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