Effect of Pipeline Orientation on Scour Mechanism in Unidirectional Steady Flow

被引：0

作者：

Yusoff, Mohd. Azlan Mohd ^{[1
]}

Azamathulla, Hazi Md. ^{[1
]}

Abu Hasan, Zorkeflee ^{[1
]}

Zakaria, Nor Azazi ^{[1
]}

Abdullah, Mohd Zulkifly

机构：

[1] Univ Sains Malaysia, River Engn & Urban Drainage Res Ctr REDAC, Nibong Tebal 14300, Malaysia

来源：

PROCEEDINGS OF THE 35TH IAHR WORLD CONGRESS, VOLS I AND II | 2013年

关键词：

Pipeline scour; 3-dimensional scour; Scour mechanism; Pipeline orientation; Flow structures;

D O I：

暂无

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The 3-dimensional flow velocity components at several different points, which are distributed equally across the channel width and the associated scour hole, are measured in order to investigate the flow components and scour mechanism around fully submerged pipeline across the channel. Three different pipeline orientations, which are 30 degrees, 60 degrees and 90 degrees from the side wall of the channel are installed at fully developed flow point in the main channel. A 3-dimensional down-looking acoustic Doppler velocimeter (ADV) is then used to measure the flow velocities at several points across and along the channel. The effect of the pipeline orientation, the flow characteristics, the horseshoe vortex effect and other associated factors is discussed in the paper.

引用

页码：5309 / 5314

页数：6