Modeling Two Phase Dense Flow Containing Cohesive Sediments in Water Environment Using SPH Method

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Kheirkhahan M.; HOSSEINI KH.; OMIDVAR P.

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Paper Information

Journal: Modares Mechanical Engineering Year:2020 | Volume:20 | Issue:5 Page(s): 1245-1254

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Title

Modeling Two Phase Dense Flow Containing Cohesive Sediments in Water Environment Using SPH Method

Author(s)

Kheirkhahan M. | HOSSEINI KH. | OMIDVAR P. | Issue Writer Certificate

Keywords

Two Phase SPH Model;Dense Flow;NonQ1

Newtonian Phase of Cohesive Sediments;HerschelQ1

BulkleyQ1

Papanastasiou Model;AdvectionQ1

Diffusion EquationQ1

Abstract

Investigating dense flows containing cohesive sediments (turbidity currents) in the water environment has been the main interest for researchers in hydraulic and fluid mechanic science. This kind of flow streams at the bed surface because of higher density than water and penetrate to overhead water, which causes turbidness. In the present research, this kind of flow has been modeled using two-phase simulation with smoothed particle hydrodynamics Lagrangian method. A SPHysics2D code has been developed for modeling, in which pressure value is calculated using the equation of state. Also, Herschel-Bulkley-Papanastasiou single relation non-Newtonian viscoplastic model has been used for modeling the cohesive sediment phase. After that for investigating the amount of penetration of cohesive sediment mixture in limpid water, the advection-Diffusion Equation was used for developing code. Finally, one and two-phase results obtained from the present model were compared to experimental models. The study shows that the present developed model is able to model these flows desirably and could be utilized for studying concentration amount, dense flow penetration and their propagation in the water environment.

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APA: Copy

Kheirkhahan, M., HOSSEINI, KH., & OMIDVAR, P.. (2020). Modeling Two Phase Dense Flow Containing Cohesive Sediments in Water Environment Using SPH Method. MODARES MECHANICAL ENGINEERING, 20(5 ), 1245-1254. SID. https://sid.ir/paper/178549/en

Vancouver: Copy

Kheirkhahan M., HOSSEINI KH., OMIDVAR P.. Modeling Two Phase Dense Flow Containing Cohesive Sediments in Water Environment Using SPH Method. MODARES MECHANICAL ENGINEERING[Internet]. 2020;20(5 ):1245-1254. Available from: https://sid.ir/paper/178549/en

IEEE: Copy

M. Kheirkhahan, KH. HOSSEINI, and P. OMIDVAR, “Modeling Two Phase Dense Flow Containing Cohesive Sediments in Water Environment Using SPH Method,” MODARES MECHANICAL ENGINEERING, vol. 20, no. 5 , pp. 1245–1254, 2020, [Online]. Available: https://sid.ir/paper/178549/en

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