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- W2059335748 abstract "진공챔버는 진공게이지 교정, 산업에서의 재료처리 등 여러 가지 다양한 용도에 맞게 적용이 가능하다. 이 진공챔버 내부에서 가스가 유입되는 과정에서의 진공도는 일정하게 유지하기가 힘들다. 산업체 응용에서뿐만 아니라 연구과정에서도 진공챔버 내부에 가스가 유입되는 동안의 내부압력분포와 최대도달 평형압력을 아는 것이 매우 중요하다. 이러한 진공챔버 내부의 압력 불균형을 감소시키기 위해서 가스 주입구 부분에 baffle을 이용하는 방법이 있다. 현재 지속적인 기체흐름이 있는 진공챔버 내부의 기체흐름의 작용에 관해 0.1 Pa~133 Pa 영역에서 불규칙한 압력을 최소화하기 위한 baffle plate의 효과에 대해 연구하였다. 최대편차는 가스 주입구 부분에서 나타나는 압력으로 baffle plate가 전환흐름영역에서 큰 영향을 미치는 것으로 나타났다. Vacuum chambers have wide application for a variety of purposes such as material processing, vacuum gauge calibration, etc. As the dynamic pressure generated in such chamber is non-uniform, in many industrial as well as research processes, it is vital to know the non-uniform gas distribution with associated gas flow regimes and the ways of minimizing these pressure non-uniformities. In the present work, the behavior of gas flow in a vacuum chamber, during continuous gas flow, is described in the pressure range 0.1-133 Pa and the effect of baffle plate in minimizing the pressure non-uniformities is investigated. It was observed that maximum deviations in the pressure occur near the gas inlet point and that the effect of baffle plate in minimizing the pressure non-uniformities is more obvious in the transitional flow regime." @default.
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- W2059335748 date "2009-11-30" @default.
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- W2059335748 title "A Study of Non-uniform Pressure Distribution in Vacuum Chamber during Dynamic Gas Flow" @default.
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- W2059335748 doi "https://doi.org/10.5757/jkvs.2009.18.6.403" @default.
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