Near field of single and twin circular synthetic air jets
Автор: Carlo Salvatore Greco
Загружено: 2012-10-17
Просмотров: 522
Описание:
Carlo Salvatore Greco, Andrea Ianiro, Tommaso Astarita and Gennaro Cardone
Dipartimento di Ingegneria Aerospaziale, University of Naples Federico II, Italy
The flow features in the near field of single and twin synthetic jets are experimentally investigated with PIV phase averaged measurements. An acoustic resonator is designed as a cavity split in two equal sub-cavities by the membrane of a loudspeaker. Each sub-cavity is connected to the quiescent ambient by a cylindrical nozzle (a pipe) thus two circular synthetic jets in phase opposition are obtained. The influence of jets interaction has been evaluated by varying the jet-axes-distance Σ (1, 3 and 5 nozzle diameters), keeping the jets pulsating frequency equal to the sub-cavities resonance frequency and the results are compared with those of the single circular synthetic jet.
This video may not be reproduced without permission. (c) 2012 Carlo Salvatore Greco
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