Abstract The ability of chevrons at the top edge of a backward-facing step to reduce downstream surface pressure fluctuations is investigated numerically. Three different chevron configurations are compared against a baseline case without chevrons. Low frequency reduction in the surface pressure fluctuations is observed for two of the configurations. The chevrons do not appear to have a significant effect on the flow as the mean reattachment length for all configurations is nearly constant and there is only a small increase in streamwise turbulence for one configuration with the other configurations unchanged.
Passive Load Control in Backward-Facing Step Flow by Using Chevrons
Proceedings of the 5th International Conference on Jets, Wakes and Separated Flows (ICJWSF2015) ; 3 ; 223-230
Springer Proceedings in Physics ; 185 , 3
2016-01-01
8 pages
Article/Chapter (Book)
Electronic Resource
English
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