摘要
Pipe fow is a classic hydrodynamic issue.Most pipelines contain bends,and bends cause energy loss and distort the flow because of secondary flow.Deflectors are often used to adjust the flow quality in a bend.Inthis study,a numerical simulatiou using ANSYS Eluent 19.0 is used to analvze the effects of the deflector number.location and angle on the flow characteristics of a square pipe with a 90°bend.The velocity non-uniformity and the head loss are analyzed quantitatively.The secondary flow is presented visually,and its evolution characteristics are assessed.An optimized installation scheme for the deflectors is discussed,and a reference is provided for controlling the fow quality in bends via deflectors.
作者
JIANG Chengi
GONG Zhaorina
江晨琦;宫兆新(School of Naval Architecture,Ocean and Civil Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;Key Laboratory of Hydrodynamics(Ministry of Education),Shanghai Jiao Tong University,Shanghai 200240,China)
基金
the National Natural Science Foundation of China(Nos.11872247,11472174,11572194,and 11372185)。
