TY - GEN
T1 - Effect of a splitter plate on the dynamics of a vortex pair
AU - Rabinovitch, Jason
AU - Brion, Vincent
AU - Blanquart, Guillaume
PY - 2011
Y1 - 2011
N2 - An experimental and numerical study was performed to investigate the behavior of a counter-rotating vortex pair as well as a single vortex in the vicinity of a wall. A wind tunnel with two NACA0012 profiles mounted vertically with an optional splitter plate in the center and a 3D PIV system were used to experimentally study the interactions between two counter-rotating vortices, as well as the interactions between a vortex and a wall. Many fundamental differences were found between the two configurations, which promote the growth of the Crow instability in the two vortex configuration, but not in the one vortex/wall configuration. The numerical results obtained re-enforced the experimental results, and emphasize the fundamental physical differences between the two configurations. While modeling a vortex wall system with an image vortex may give correct integral results for loads experienced by blades, this model does not accurately describe the downstream dynamics of the vortex system.
AB - An experimental and numerical study was performed to investigate the behavior of a counter-rotating vortex pair as well as a single vortex in the vicinity of a wall. A wind tunnel with two NACA0012 profiles mounted vertically with an optional splitter plate in the center and a 3D PIV system were used to experimentally study the interactions between two counter-rotating vortices, as well as the interactions between a vortex and a wall. Many fundamental differences were found between the two configurations, which promote the growth of the Crow instability in the two vortex configuration, but not in the one vortex/wall configuration. The numerical results obtained re-enforced the experimental results, and emphasize the fundamental physical differences between the two configurations. While modeling a vortex wall system with an image vortex may give correct integral results for loads experienced by blades, this model does not accurately describe the downstream dynamics of the vortex system.
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U2 - 10.2514/6.2011-3894
DO - 10.2514/6.2011-3894
M3 - Conference contribution
AN - SCOPUS:85086614826
SN - 9781600869471
T3 - 41st AIAA Fluid Dynamics Conference and Exhibit
BT - 41st AIAA Fluid Dynamics Conference and Exhibit
T2 - 41st AIAA Fluid Dynamics Conference and Exhibit 2011
Y2 - 27 June 2011 through 30 June 2011
ER -