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논문 기본 정보

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학술대회자료
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한국가시화정보학회 한국가시화정보학회 학술발표대회 논문집 2006년도 한국가시화정보학회 추계학술대회 논문집
발행연도
수록면
17 - 20 (4page)

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초록· 키워드

Passenger safety is fundamental factor in automobile. Among much equipment for passenger safety, the air bag system is the most fundamental and effective device. Beside of the front air bag system which installed on most of all automobiles, a curtain-type air bag is increasingly adapted in deluxe cars for protecting passengers from the danger of side clash. Curtain type airbag system consists of inflator housing, fill hose, curtain airbag. Inflator housing is a main part of the curtain-type air bag system for supplying high-pressure gases to deploy the air bag-curtain. Fill hose is a passageway to carry the gases from inflator housing to each part of curtain airbag. Therefore, it is very important to design the vent holes of fill hose for good performance of airbag deployment. But, the flow information from vent holes of fill hose is very limited. In this study, we measured instantaneous velocity fields of a high-speed flow ejecting from the vent holes of fill hose using a dynamic PIV system. From the velocity field data measured at a high frame-rate, we evaluated the variation of the mass flow rate with time. From the instantaneous velocity fields of flow ejecting from the vent holes in the initial stage, we can see a flow pattern of wavy motion and fluctuation. The flow ejecting from the vent holes was found to have very high velocity fluctuations and the maximum velocity was about 480㎧ at 4-vent hole region. From the mass flow rate with time, the accumulated flow of 4-vent hole has occupied about 70% of total flow rate.
#Flow visualization(유동가시화) #Fill hose(주입관) #Dynamic PIV(다이나믹 PIV)
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목차

  1. Abstract
  2. 1. 서론
  3. 2. 실험장치와 기법
  4. 3. 순간속도장 결과 및 고찰
  5. 4. 결론
  6. 후기
  7. 참고문헌

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