한국화재소방학회:학술대회논문집 (Proceedings of the Korea Institute of Fire Science and Engineering Conference)
- 한국화재소방학회 1996년도 학술발표회
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- Pages.5-9
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- 1996
밀폐공간에서의 화재에 의한 연기의 유동 이론
The Theory of Smoke Movement by a Fire in an Enclosure
초록
In foreign country such as U.S.A and Japan, considerable research has been done regarding the spread of smoke in room of fire involvement by using computer. But, in our country it has not been. So, this paper presents a detailed qualitative description of phenomena which occures during typical fire scenarios through numerical analysis. This research, in the view of field model, is focused on finding out the smoke movement and temperature distribution. And it is planned to analyze governing equation including smoke diffusion equation by numerical analysis with finite volume method and non-staggered grid system. The SIMPLE method for pressure-velocity couple and power-law scheme for convection terms are used. It shows that a plume is formed, hot plume is formed, hot plume gases impinge on the ceiling and they spread across it. then, it eventually reaches the bounding walls of the enclosure. It takes 60s for smoke to fill the enclosure.
키워드