Abstract Vortex shedding and sound radiation from two side-by-side square cylinders was examined experimentally at low-Mach-number flow. The center-to-center distance (L / d) between two cylinders was 3.6, 4.5 and 6.0 which are still in the regime of non-biased flow. At and 4.5, the wake behind the cylinders showed symmetric vortex shedding which generate the in-phase sound pressure. The vortex shedding exhibited a high spanwise coherency and thus strong sound was radiated compared to that in a single-cylinder case. It was also shown that when a short splitter plate with was glued on the rear side of each cylinder, the sound pressure level was reduced significantly.
Experiments on Sound Radiation in Flow Past Two Side-by-Side Square Cylinders
Proceedings of the 5th International Conference on Jets, Wakes and Separated Flows (ICJWSF2015) ; 6 ; 383-388
Springer Proceedings in Physics ; 185 , 6
2016-01-01
6 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch