Calculation on Dynamic Angle of Repose for Submarine Pipeline on Sandy Seabed

Li Peng Yang; Bing Shi; Ya Kun Guo

doi:10.4028/www.scientific.net/AMM.137.210

Paper Titles

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3-D FEM Seepage Simulation of Channel with Drain Pipes
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Application Research on Low-Pressure Pulse and Cavitation Jet Compound Drilling Technology
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Calculation on Dynamic Angle of Repose for Submarine Pipeline on Sandy Seabed
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 137Calculation on Dynamic Angle of Repose for...

Calculation on Dynamic Angle of Repose for Submarine Pipeline on Sandy Seabed

Abstract:

This paper investigates the dynamic angle of repose underneath the submarine pipeline. Using a sand deposition model, the analysis of forces acting on non-cohesive sand particle gives the formulas of dynamic angle of repose in the scour hole. The formulas for different scenarios are discussed and it is observed that the angle upstream the vertical axis of the pipe increases with the increase of sand Reynolds number. The angle downstream, however, shows a contrary trend. Besides, the angle upstream is bigger than that downstream. The comparison of the calculation results with the experimental data indicates that the formula predicts the angle of scour hole under a pipeline reasonably well.

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Periodical:

Applied Mechanics and Materials (Volume 137)

Pages:

210-214

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.137.210

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Online since:

October 2011

Authors:

Li Peng Yang, Bing Shi, Ya Kun Guo

Keywords:

Dynamic Angle of Repose, Sand Deposition Model, Submarine Pipeline, Unidirectional Flow

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