Section Turbulent Distribution of the Stratified Shear Flow in the Braided River

Li Gu; Hang Yuan; Qiu Lan Li; Zi Nan Jiao; Lan Lan Wang

doi:10.4028/www.scientific.net/AMM.665.459

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 665Section Turbulent Distribution of the Stratified...

Section Turbulent Distribution of the Stratified Shear Flow in the Braided River

Abstract:

The turbulent characteristics of stratified shear flow in braided rivers with different velocities in upper and lower layers are not clear at present. The physical model of a typical braided river was conducted to study its sectional turbulence intensity distribution. The model has a mid-bar between two symmetrical anabranches. The transverse distribution, the vertical distribution and the whole section distribution of turbulent intensity were analyzed. The strong turbulent intensity occurred in the interface of upper and lower layers and the boundary zone of the high velocity and low velocity near outer bank. As the flow moved downstream, the strong area of turbulent intensity had a trend moving from the outer bank to the inner bank, and then the turbulent intensity decreased and mixed uniformly.

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Periodical:

Applied Mechanics and Materials (Volume 665)

Pages:

459-463

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.665.459

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Online since:

October 2014

Authors:

Li Gu*, Hang Yuan, Qiu Lan Li, Zi Nan Jiao, Lan Lan Wang

Keywords:

Braided River, Transverse Distribution, Turbulent Intensity, Vertical Distribution

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* - Corresponding Author

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