... not cross x = 0 , the location behind the intersection of the vanes. The flow in this region is much less periodic and does not have the same large-scale coherent structures as the outer locations. Time-resolved particle image velocimetry measurements were conducted in the wake region...

.... Linear combination of POD vorticity modes is used for the qualitative visualization of coherent structures. The vorticity fields are computed from the instantaneous two-dimensional velocity fields measured using a combined particle image velocimetry and laser-induced fluorescence technique (PIV-LIF...

... and Technology, London, Aero Report No. 72-19. [11] Dol , S. S. , 2011 , “ Particle Image Velocimetry Investigation of Pulsatile Flow Over a Backward-Facing Step ,” Ph.D. thesis, University of Calgary, Calgary, Canada. [12] Hussain , A. K. M. F. , 1986 , “ Coherent Structures and Turbulence...

... Centrifugal vortex pump stage . centrifugal vortex pump coherent structures rotor fluid interaction unsteady flow CFD Improvements to the characteristics of a centrifugal pump through the addition of a vortex rotor were investigated both experimentally and with computational fluid dynamic...

... of the exposed vortices. A statistical analysis of the distribution of number, size, and strength of the identified vortices was carried out to explore the characteristics of the coherent structures. The results clearly reveal the existence of numerous vortical structures of both rotational senses in the jet...

... turbulent free jet coherent structures PIV POD The turbulent free round jet has received the attention of many researchers because of its fundamental significance as a basic flow in turbulence research (see, for example, Refs. 1 2 for comprehensive reviews). Many previous studies have focused...