摘要
近年来,由于建筑排水方面塑料管的推广使用,管壁粗糙度对排水立管临界流量的影响问题,引起了普遍的关注.本文通过两相流理论分析和水力学试验验证证实:室内排水立管管壁粗糙度的减小,不仅不能加大其临界流量,反而会减小其临界流量.
Surface roughness in a waste stack affecting critical discharge, has been concerned about by plumbing engineers in the recent years. It is due to the development of adopting plastic pipes in present plumbing work.It has been verified in this paper, by theoretical analysis with two-phase fluid mechanics and hydraulic tests, that decreasing surface roughness in a wade stack can not increase critical discharge.
出处
《青岛建筑工程学院学报》
1992年第4期58-64,共7页
Journal of Qingdao Institute of Architecture and Engineering
关键词
临界流量
排水立管
管壁
粗糙率
critical discharge
two-phase fluid
water membrane fluid
