摘要 :
The mechanism of three-dimensional rotational flow in a curved duct caused by distorted inflow is investigated numerically. The steady, laminar flow of viscous, incompressible fluid in a 90-deg. curved duct with a square cross sec...
展开
The mechanism of three-dimensional rotational flow in a curved duct caused by distorted inflow is investigated numerically. The steady, laminar flow of viscous, incompressible fluid in a 90-deg. curved duct with a square cross section is simulated by the pseudo-compressibility method. A uniform velocity gradient is assumed at the entrance of the computational domain.
收起
摘要 :
The patterns of secondary flows in a curved duct depend on many factors such as Dean number, the geometry of the cross section and the inflow velocity profile. The prediction of frictional loss in the pipeline system, therefore, i...
展开
The patterns of secondary flows in a curved duct depend on many factors such as Dean number, the geometry of the cross section and the inflow velocity profile. The prediction of frictional loss in the pipeline system, therefore, is difficult. In this study, the viscous flow of incompressible fluid in a 90°curved duct of rectangular cross sections is numerically simulated by the pseudocompressibility method. The influences of the aspect ratio of the cross section and the distortion rate of inlet flow on the frictional loss are investigated. °
收起
