... control curved diffuser secondary flow vortices To allow a more meaningful comparison between different test cases, nondimensional static and total pressures, denoted by C p and C p 0 , respectively, are defined as 3 3a C p = P ( L ( i ) W 1...

... system. The concentrations of aqueous surfactant solutions ( C 14 TASal ) are 0.4 wt % , 0.8 wt % , and 1.2 wt % . Rheological properties such as shear viscosity and first normal stress difference of the surfactant solution were measured with a rheometer. The patterns of secondary flow were classified...

... is. The transition to a periodic or chaotic state is retarded with an increase of δ . Nusselt numbers are calculated as an index of horizontal heat transfer and it is found that the convection due to the secondary flow, enhanced by the centrifugal force, increases heat transfer significantly from the heated wall...

... in a rotating helical coordinate system are solved. The combined effects of rotation, torsion, and geometry on the characteristics of secondary flow and fluid particle trajectory are discussed. Some new and interesting conclusions are obtained, such as how the number of secondary flow cells and the secondary...

... to the “wake” flow caused by the flow separation. A strong clockwise secondary flow is found to dominate the flow structure at the pump mid-chord. The Coriolis force and the through flow velocity deficit near the core at the pump inlet are the main reasons for this secondary flow. The jet-wake flow pattern...