Open Access

ARTICLE

Experimental and Three-Dimensional Numerical Simulation of Phenomena Induced by Submerged Oblique Jet Scouring

by Hao Chen^1,2, Xianbin Teng^2,*, Faxin Zhu^1,*, Zhibin Zhang², Jie Wang¹

1 School of Naval Architecture and Maritime, Zhejiang Ocean University, Zhoushan, 316022, China
2 School of Marine Engineering, Guangzhou Maritime University, Guangzhou, 510725, China

* Corresponding Authors: Xianbin Teng. Email: ; Faxin Zhu. Email:

(This article belongs to the Special Issue: Computational Fluid Dynamics: Two- and Three-dimensional fluid flow analysis over a body using commercial software)

Fluid Dynamics & Materials Processing 2024, 20(8), 1799-1821. https://doi.org/10.32604/fdmp.2024.049731

Received 16 January 2024; Accepted 08 April 2024; Issue published 06 August 2024

Abstract

Scouring experiments were conducted using a three-dimensional laser scanning technology for angles of the jet spanning the interval from 0° to 30°, and the characteristics of the scour hole in equilibrium conditions were investigated accordingly. The results indicate that the optimal scouring effects occur when the jet angle is in the ranges between 15° and 20°. Moreover, the dimensionless profiles of the scour hole exhibit a high degree of similarity at different jet angles. Numerical simulations conducted using the Flow-3D software to investigate the bed shear stress along the jet impingement surface have shown that this stress is influenced by both the resultant force and the jet impingement surface area. It reaches its maximum value when the jet is vertical, decreases rapidly as the jet starts to tilt, then increases slightly, and decreases again significantly when the angle exceeds 20°.

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Keywords

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