PIV Measurements of the Effect of Pitch and Skew on a Circular Orifice Synthetic Jet in a Turbulent Boundary Layer

2006 ◽  
Author(s):  
Luis Garcillan ◽  
Stephen Liddle ◽  
Kailash Sunneechurra ◽  
Bill Crowther ◽  
Shan Zhong ◽  
...  
Keyword(s):  
Boundary Layer ◽  
Turbulent Boundary Layer ◽  
Synthetic Jet ◽  
Piv Measurements ◽  
Circular Orifice

scholarly journals Scalings for rectangular synthetic jet trajectory in a turbulent boundary layer

2021 ◽  
Vol 915 ◽  
Author(s):  
Girish K. Jankee ◽  
Bharathram Ganapathisubramani
Keyword(s):  
Boundary Layer ◽  
Turbulent Boundary Layer ◽  
Synthetic Jet ◽  
Jet Trajectory

Abstract

scholarly journals Effects of Synthetic Jet Array on Turbulent Boundary Layer

2019 ◽  
Vol 37 (3) ◽  
pp. 893-898
Author(s):  
Zhixian Ye ◽  
Yiyang Jiang ◽  
Yang Zhang ◽  
Jianfeng Zou ◽  
Yao Zheng
Keyword(s):  
Boundary Layer ◽  
Turbulent Boundary Layer ◽  
Synthetic Jet ◽  
Jet Array

scholarly journals Cross-plane stereo-PIV measurements in a refractive-index-matched environment of flow associated with barchan dunes immersed in a turbulent boundary layer

2021 ◽  
Vol 1 (1) ◽  
Author(s):  
Nathaniel Bristow ◽  
Gianluca Blois ◽  
James Best ◽  
Kenneth Christensen
Keyword(s):  
Boundary Layer ◽  
Refractive Index ◽  
Turbulent Boundary Layer ◽  
Coherent Structures ◽  
Fixed Bed ◽  
Flow Structures ◽  
Local Flow ◽  
Piv Measurements ◽  
Complex Interactions ◽  
Barchan Dunes

Barchan dunes are crescent-shaped bedforms that form in aeolian (i.e., wind-driven) environments (including both Earth and other planets, such as Mars) as well as subaqueous environments. Under the forcing of the aloft turbulent boundary layer, they migrate downstream at a rate inversely proportional to their size, which results in complex interactions between neighboring dunes of disparate scales. In particular, it has been observed that dunes will interact at a distance, causing changes in morphology without contacting each other, which is thought to be driven by the way dunes modify the local flow field Bristow et al. (2018); Assis and Franklin (2020). In this study, the coherent structures formed in the wakes of barchan dunes are investigated using measurements of the flow over fixed-bed (i.e., solid) barchan models, both in the wake of an isolated barchan and the interdune region between interacting barchans (Fig. 1(a)). Furthermore, the interactions between the flow structures shed by the dunes and the structures in the incoming boundary layer are analyzed.

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