The Effect of a Synthetic Jet on the Near-field Development of a Turbulent Mixing Layer

2002 ◽  
Author(s):  
Surajeet Ghosh ◽  
Douglas Smith
Keyword(s):  
Turbulent Mixing ◽  
Near Field ◽  
Mixing Layer ◽  
Synthetic Jet ◽  
Turbulent Mixing Layer ◽  
Field Development

scholarly journals Near-field Development of a Turbulent Mixing Layer Periodically Forced by a Bimorph PVDF Film Actuator

2010 ◽  
Vol 5 (2) ◽  
pp. 156-168 ◽  
Author(s):  
Yoshitsugu NAKA ◽  
Ken-ichiro TSUBOI ◽  
Yukinori KAMETANI ◽  
Koji FUKAGATA ◽  
Shinnosuke OBI
Keyword(s):  
Turbulent Mixing ◽  
Near Field ◽  
Mixing Layer ◽  
Pvdf Film ◽  
Turbulent Mixing Layer ◽  
Field Development

RE-EVALUATING MIXING LENGTH IN TURBULENT MIXING LAYER BY MEANS OF HIGH-ORDER STATISTICS OF VELOCITY FIELD

2012 ◽  
Vol 19 ◽  
pp. 154-165 ◽  
Author(s):  
KEH-CHIN CHANG ◽  
KUAN-HUANG LI ◽  
TING-CHENG CHANG
Keyword(s):  
Shear Layer ◽  
Turbulent Mixing ◽  
Near Field ◽  
Mixing Layer ◽  
Sufficient Conditions ◽  
The Self ◽  
Linear Growth Rate ◽  
Mixing Length ◽  
Turbulent Mixing Layer ◽  
Low Speed

A turbulent planar mixing layer is composed of two different flow types in its flow field, namely a shear layer in the central region and two free streams in each outer high- and low-speed side. Shear layer is formed after the trailing edge of the splitting plate and develops stream-wisely through successively distinct regions, namely the near field region and the self-preserving region. Two alternative definitions of the mixing lengths (lS and lF) are proposed in terms of the skewness and flatness factors, respectively, which are of third- and fourth-order of turbulence statistics. It is shown that the linear growth rate of the mixing length (either lS or lF) can be, then, used as one of the necessary and sufficient conditions to identify the achievement of the self-preserving state in turbulent mixing layer. Moreover, lF can be taken as the real length scale of the shear layer, which is of shear turbulence, bounded by the two outer high- and low-speed free streams in a given stream-wise station.

Wavelet analysis of shearless turbulent mixing layer

2021 ◽  
Vol 33 (2) ◽  
pp. 025109
Author(s):  
T. Matsushima ◽  
K. Nagata ◽  
T. Watanabe
Keyword(s):  
Wavelet Analysis ◽  
Turbulent Mixing ◽  
Mixing Layer ◽  
Turbulent Mixing Layer

Time resolved flow-field measurements of a turbulent mixing layer over a rectangular cavity

2010 ◽  
Vol 51 (1) ◽  
pp. 51-63 ◽  
Author(s):  
Shiyao Bian ◽  
James F. Driscoll ◽  
Brian R. Elbing ◽  
Steven L. Ceccio
Keyword(s):  
Flow Field ◽  
Turbulent Mixing ◽  
Mixing Layer ◽  
Field Measurements ◽  
Rectangular Cavity ◽  
Time Resolved ◽  
Turbulent Mixing Layer
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