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Journal of Flow Visualization and Image Processing
SJR: 0.11 SNIP: 0.312 CiteScore™: 0.1

ISSN Print: 1065-3090
ISSN Online: 1940-4336

Journal of Flow Visualization and Image Processing

DOI: 10.1615/JFlowVisImageProc.2012001933
pages 1-13

THE PERFORMANCE OF HEXAGONALLY ARRANGED HYBRID SYNTHETIC JETS

Shu-Shen Hsu
Institute of Applied Mechanics, National Taiwan University
Jozef Kordik
Faculty of Mechanical Engineering, Czech Technical University in Prague, Institute of Thermomechanics AS CR, Czech Republic
Zdenek Travnicek
Institute of Thermomechanics of the Czech Academy of Sciences
An-Bang Wang
National Taiwan University, Institute of Applied Mechanics, No. 1, Roosevelt Rd., Sec. IV, 106, Taipei, Taiwan Republic of China

ABSTRACT

The double-acting operation of a reciprocating pump with hexagonally arranged hybrid synthetic jets (HSJ) was studied in this research. Unlike the typical synthetic jet (SJ) which is a zero-net-mass-flux flow, the hybrid synthetic jet is a nonzero-net-mass-flux flow which was measured by the hot-wire anemometer. The results show the higher extrusion to suction volume ratio is 1.69 or volumetric efficiency is 26% in hybrid synthetic jets by integrating the velocity profile comparing with 19% in trigonally arranged one. Although the velocity along the central SJ axis decreases quickly, the velocity is higher than that along the trigonally arranged one.


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