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Interactions Of A Co-Rotating Vortex Pair At Multiple Offsets, Kyle Forster, Tracie Barber, Sammy Diasinos, Graham Doig
Interactions Of A Co-Rotating Vortex Pair At Multiple Offsets, Kyle Forster, Tracie Barber, Sammy Diasinos, Graham Doig
Aerospace Engineering
Two NACA0012 vanes at various lateral offsets were investigated by wind tunnel testing to observe the interactions between the streamwise vortices. The vanes were separated by nine chord lengths in the streamwise direction to allow the upstream vortex to impact on the downstream geometry. These vanes were evaluated at an angle of incidence of 8° and a Reynolds number of 7 x 104 using particle image velocimetry. A helical motion of the vortices was observed, with rotational rate increasing as the offset was reduced to the point of vortex merging. Downstream meandering of the weaker vortex was found to …
Interactions Of A Counter-Rotating Vortex Pair At Multiple Offsets, Kyle Forster, Tracie J. Barber, Sammy Diasinos, Graham Doig
Interactions Of A Counter-Rotating Vortex Pair At Multiple Offsets, Kyle Forster, Tracie J. Barber, Sammy Diasinos, Graham Doig
Aerospace Engineering
The interactions between two streamwise vortices were investigated by wind tunnel testing of two NACA0012 vanes at various lateral offsets. One vane was spaced 10 chord lengths (C) downstream of the other, with both at an angle of incidence of 8 degrees and a Reynolds number of 7 x 104. The evolution of the vortex pair was observed until 6.5C behind the downstream vane using Particle Image Velocimetry (PIV). It was found that proximity of the upstream vortex to the downstream vane had a significant effect on the rotational rate of the subsequent vortex pair, with far offset …