CAJ | 학술논문

建筑排水系统的设计依据是最大使用限度理念,该理念由概率论和恒定流理论发展而来.这种基于恒定流理论的现有方法,对排水立管流态、瞬态压强传播机理、系统内气体运动模式、虹吸雨水排水系统初始阶段的管道水流状态等问题的分析难以取得有效进展,而对排水系统内部非恒定水流运动情况的详细分析已成为该领域的研究趋势.介绍了研究建筑排水系统内气水运动模式的计算流体动力学(CFD)方法,并总结了CFD在国外排水系统中的应用情况.
건축배수계통적설계의거시최대사용한도이념,해이념유개솔론화항정류이론발전이래.저충기우항정류이론적현유방법,대배수립관류태、순태압강전파궤리、계통내기체운동모식、홍흡우수배수계통초시계단적관도수류상태등문제적분석난이취득유효진전,이대배수계통내부비항정수류운동정황적상세분석이성위해영역적연구추세.개소료연구건축배수계통내기수운동모식적계산류체동역학(CFD)방법,병총결료CFD재국외배수계통중적응용정황.
The base for the building water supply and drainage system design is the maximum service limit concept, which originates from the probability theory and steady flow theory. The current based on steady flow method can not make further progress in the fields of vertical drainage pipe flow stage, instant pressure transportation theory, gas moving pattern, and fluid state in the siphon at the initial rainwater drainage stage, while the detailed analysis on the unsteady flow state inside the drainage system has become the research tendency in this field. This paper introduced the computational fluid dynamics (CFD) methods to study the gas and fluid moving patterns in the building water supply and drainage system and summarized the abroad application of CFD in the drainage system.