# Calculation on dynamic angle of repose for submarine pipeline on sandy seabed

Lipeng Yang, Bing Shi, Yakun Guo

Research output: Contribution to journalArticle

1 Citation (Scopus)

### 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.
Original language English 210-214 5 Applied Mechanics and Materials 137 1 Oct 2011 https://doi.org/10.4028/www.scientific.net/AMM.137.210 Published - Oct 2011

### Fingerprint

Submarine pipelines
Scour
Sand
Reynolds number
Pipelines
Pipe

### Keywords

• dynamic angle of repose
• sand deposition model
• submarine pipeline
• undirectional flow

### Cite this

Calculation on dynamic angle of repose for submarine pipeline on sandy seabed. / Yang, Lipeng; Shi, Bing; Guo, Yakun.

In: Applied Mechanics and Materials, Vol. 137, 10.2011, p. 210-214.

Research output: Contribution to journalArticle

Yang, Lipeng ; Shi, Bing ; Guo, Yakun. / Calculation on dynamic angle of repose for submarine pipeline on sandy seabed. In: Applied Mechanics and Materials. 2011 ; Vol. 137. pp. 210-214.
@article{f205bc739b18485aaeeac06113ff8873,
title = "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.",
keywords = "dynamic angle of repose, sand deposition model, submarine pipeline, undirectional flow",
author = "Lipeng Yang and Bing Shi and Yakun Guo",
year = "2011",
month = "10",
doi = "10.4028/www.scientific.net/AMM.137.210",
language = "English",
volume = "137",
pages = "210--214",
journal = "Applied Mechanics and Materials",
issn = "1662-7482",

}

TY - JOUR

T1 - Calculation on dynamic angle of repose for submarine pipeline on sandy seabed

AU - Yang, Lipeng

AU - Shi, Bing

AU - Guo, Yakun

PY - 2011/10

Y1 - 2011/10

N2 - 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.

AB - 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.

KW - dynamic angle of repose

KW - sand deposition model

KW - submarine pipeline

KW - undirectional flow

U2 - 10.4028/www.scientific.net/AMM.137.210

DO - 10.4028/www.scientific.net/AMM.137.210

M3 - Article

VL - 137

SP - 210

EP - 214

JO - Applied Mechanics and Materials

JF - Applied Mechanics and Materials

SN - 1662-7482

ER -