Quasi-stationary flow structure in turbidity currents

Shun Nomura; Giovanni De Cesare; Mikito Furuichi; Yasushi Takeda; Hide Sakaguchi

doi:10.1016/j.ijsrc.2020.04.003

Quasi-stationary flow structure in turbidity currents

International Journal of Sediment Research ◽

10.1016/j.ijsrc.2020.04.003 ◽

2020 ◽

Vol 35 (6) ◽

pp. 659-665 ◽

Cited By ~ 1

Author(s):

Shun Nomura ◽

Giovanni De Cesare ◽

Mikito Furuichi ◽

Yasushi Takeda ◽

Hide Sakaguchi

Keyword(s):

Flow Structure ◽

Stationary Flow ◽

Turbidity Currents

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Linking submarine channel-levee facies and architecture to flow structure of turbidity currents: insights from flume tank experiments

Sedimentology ◽

10.1111/sed.12411 ◽

2017 ◽

Vol 65 (3) ◽

pp. 931-951 ◽

Cited By ~ 13

Author(s):

Jan de Leeuw ◽

Joris T. Eggenhuisen ◽

Matthieu J. B. Cartigny

Keyword(s):

Flow Structure ◽

Turbidity Currents ◽

Submarine Channel

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Flow structure of turbidity currents

Sedimentology ◽

10.1046/j.1365-3091.2002.00449.x ◽

2002 ◽

Vol 49 (3) ◽

pp. 397-419 ◽

Cited By ~ 60

Author(s):

M. Felix

Keyword(s):

Flow Structure ◽

Turbidity Currents

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Experimental observation of the flow structure of turbidity currents

Journal of Hydraulic Research ◽

10.1080/00221686.2010.543777 ◽

2011 ◽

Vol 49 (2) ◽

pp. 168-177 ◽

Cited By ~ 15

Author(s):

Zahra Nourmohammadi ◽

Hossein Afshin ◽

Bahar Firoozabadi

Keyword(s):

Experimental Observation ◽

Flow Structure ◽

Turbidity Currents

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3-D Simulation of Conservative and Non-Conservative Density Current

Fluids Engineering ◽

10.1115/imece2006-15785 ◽

2006 ◽

Author(s):

S. Hormozi ◽

B. Firoozabadi ◽

H. Ghasvari Jahromi ◽

S. M. H. Moosavi Hekmati

Keyword(s):

Flow Structure ◽

Environmental Flows ◽

Three Dimensional ◽

Turbidity Currents ◽

Density Current ◽

Density Currents ◽

Straight Channel ◽

Suspended Material ◽

Series Of Experiments ◽

Good Agreement

Flows generated by density differences are called gravity or density currents which are generic features of many environmental flows. These currents are classified as the conservative and non-conservative flows whether the buoyancy flux is conserved or changed respectively. In this paper, a low Reynolds k-ε turbulence model is used to simulate three dimensional density and turbidity currents. Also, a series of experiments were conducted in a straight channel to study the characteristics of the non-conservative density current. In experiments, Kaolin was used as the suspended material. Comparisons are made between conservative and non-conservative's height, concentration and velocity profiles of the current and their variations along the transverse intersections. Outcomes indicate that the presence of the particles influences the flow structure sensibly. The results are compared with the experiments and showed a good agreement.

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