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

Yan Hua Yang; Xiao Qiang Liu; Ming Jin Zhang

doi:10.4028/www.scientific.net/AMM.212-213.1177

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A Study on the Evolution Characteristics of the Large Structure of Turbulence in a Meander Channel
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 212-213A Study on the Evolution Characteristics of the...

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

Abstract:

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.

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Periodical:

Applied Mechanics and Materials (Volumes 212-213)

Pages:

1177-1181

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.212-213.1177

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Online since:

October 2012

Authors:

Yan Hua Yang, Xiao Qiang Liu, Ming Jin Zhang

Keywords:

Curvature, Meander Channel, Turbulence, Vortice

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