The tripole: A new coherent vortex structure of incompressible two-dimensional flows

1990 ◽  
Vol 51 (1-4) ◽  
pp. 87-102 ◽  
Author(s):  
Lorenzo M. Polvani ◽  
Xavier J. Carton
Keyword(s):  
Vortex Structure ◽  
Two Dimensional ◽  
Coherent Vortex ◽  
Coherent Vortex Structure ◽  
Two Dimensional Flows

A Study on the Evolution Characteristics of the Large Structure of Turbulence in a Meander Channel

2012 ◽  
Vol 212-213 ◽  
pp. 1177-1181
Author(s):  
Yan Hua Yang ◽  
Xiao Qiang Liu ◽  
Ming Jin Zhang
Keyword(s):  
Theoretical Method ◽  
Two Dimensional ◽  
Large Structure ◽  
Turbulent Structures ◽  
Turbulent Vortex ◽  
Multi Scale ◽  
Evolution Characteristics ◽  
Coherent Vortex ◽  
Meander Channel ◽  
Coherent Vortex Structure

In this paper, we adopt theoretical method to study the evolution characteristic of the two dimensional turbulent vortex structures in a meander channel. The disturbance growth rates under different bank curvatures are simulated. The result showed that the change of growth rate of smaller vortices is more intensive than bigger vortices. Future more, we consider the coherent vortex structure as a kind of disturbance to study the evolution characteristics of multi-scale turbulent structures in a meander channel, make basis for finding “meander channel-forming vortices” which is controlling the river shape and adapt to the meander river in theoretic.

Coherent vortex structure investigation behind the axial fan in pipe

PAMM ◽  
2019 ◽  
Vol 19 (1) ◽  
Author(s):  
Ðorđe Čantrak ◽  
Novica Janković ◽  
Miloš Nedeljković
Keyword(s):  
Vortex Structure ◽  
Structure Investigation ◽  
Axial Fan ◽  
Coherent Vortex ◽  
Coherent Vortex Structure

scholarly journals Statistical Investigation on Coherent Vortex Structure in Turbulent Drag Reducing Channel Flow with Blown Polymer Solution

2011 ◽  
Vol 318 (9) ◽  
pp. 092017
Author(s):  
Shota Ishitsuka ◽  
Masaaki Motozawa ◽  
Kaoru Iwamoto ◽  
Hirotomo Ando ◽  
Tetsuya Senda ◽  
...  
Keyword(s):  
Polymer Solution ◽  
Channel Flow ◽  
Vortex Structure ◽  
Statistical Investigation ◽  
Turbulent Drag ◽  
Coherent Vortex ◽  
Coherent Vortex Structure

scholarly journals The strain rate in evolutions of (elliptical) vortices in inviscid two-dimensional flows

2001 ◽  
Vol 13 (12) ◽  
pp. 3699-3708 ◽  
Author(s):  
P. W. C. Vosbeek ◽  
G. J. F. van Heijst ◽  
V. P. Mogendorff
Keyword(s):  
Strain Rate ◽  
Two Dimensional ◽  
Two Dimensional Flows
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