Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/14303
Title: Mini-jet controlled turbulent round air jet
Authors: Du, C
Mi, JC
Zhou, Y
Zhan, J
Issue Date: 2011
Publisher: Chinese Physical Society
Source: Chinese physics letters, 2011, v. 28, no. 12, 124703 How to cite?
Journal: Chinese physics letters 
Abstract: We report an investigation of the active control of a round air jet by multiple radial blowing mini-jets. The Reynolds number based on the jet exit velocity and diameter is 8000. It is found that once the continuous minijets are replaced with pulsed ones, the centerline velocity decay rate K can be greatly increased as the pulsing frequency of mini-jets approaches the natural vortex frequency of the main jet. For example, the K value is amplified by more than 50% with two (or four) pulsed mini-jets blowing, compared with the continuous mini-jets at the same ratio of the mass flow rate of the mini-jets to that of the main jet.
URI: http://hdl.handle.net/10397/14303
ISSN: 0256-307X
EISSN: 1741-3540
DOI: 10.1088/0256-307X/28/12/124703
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