아트리움 공간에 있어서 연기 유동에 관한 수치해석적 연구

• 영문명: A Numerical Study of Smoke Movement In Atrium Space
• 발행기관: 한국화재소방학회
• 저자명: 노재성 유홍선 정연태 김충익 윤명오
• 간행물 정보: 『한국화재소방학회논문지』Vol.11 No.4, 3~14쪽, 전체 12쪽
• 주제분류: 공학 > 공학일반
• 파일형태: PDF
• 발행일자: 1997.12.30

영문 초록

The smoke filling process for the atrium space containing a fire source is simulated using two types of deterministic fire model : Zone model and Field model. The zone model used is the CFAST(version 1.6) model developed at the Building and Fire Research Laboratories, NIST in the USA. The field model is a self-developed frie field model based on Computational Fluid Dynamic (CFD) theories. This article is focused on finding out the smoke movement and temperature distribution in atrium space which is cubic in shape. For solving the liked set of velocity and pressure equation, the PISO algorithm, which strengthened the velocity-pressure coupling, was used. Since PISO algorithm is a time-marching procedure, computing time si very fast. A computational procedure for predicting velocity and temperature distribution in fire-induced flow is based on the solution, in finite volume method and non-staggered grid system, of 3-dimensional equations for the conservation of mass, momentum, energy, species and so forth. The fire model i.e Zone model and Field model predicted similar results for clear heights and the smoke layer temperature.

키워드

Atrium Zone model Field model PISO algorithm Non-staggered Grid