Effect of a splitter plate on the dynamics of a vortex pair

Jason Rabinovitch, Vincent Brion, Guillaume Blanquart

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

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.

Original languageEnglish
Title of host publication41st AIAA Fluid Dynamics Conference and Exhibit
DOIs
StatePublished - 2011
Event41st AIAA Fluid Dynamics Conference and Exhibit 2011 - Honolulu, HI, United States
Duration: 27 Jun 201130 Jun 2011

Publication series

Name41st AIAA Fluid Dynamics Conference and Exhibit

Conference

Conference41st AIAA Fluid Dynamics Conference and Exhibit 2011
Country/TerritoryUnited States
CityHonolulu, HI
Period27/06/1130/06/11

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