1. Coupling Effect of Vortex-Induced Vibration of a Submarine Pipeline and Local Scour Under Steady Current
- Author
-
Zhang Qi, Zhou Xianglian, Wan-Ling Li, Shuo Zhang, and Xiao-He Xia
- Subjects
Mechanical Engineering ,Astrophysics::Instrumentation and Methods for Astrophysics ,0211 other engineering and technologies ,Ocean Engineering ,02 engineering and technology ,Mechanics ,01 natural sciences ,010101 applied mathematics ,Pipeline transport ,Vibration ,Computer Science::Hardware Architecture ,Coupling effect ,Vortex-induced vibration ,Submarine pipeline ,0101 mathematics ,Current (fluid) ,Geology ,Seabed ,021101 geological & geomatics engineering - Abstract
The dynamic interaction between pipeline vibration and local scour is investigated numerically. The sediment scour model is adopted to calculate the local scour below pipeline. The general moving objects (GMO) model fully coupled with the fluids is established to simulate the pipeline vibration. The present results are consistent with the previous experimental results and show good agreement. The scour depth and scour hole scale are closely related to the amplitude of pipeline vibration. The effects of initial gap-to-diameter ratio, reduced velocity, and pipeline diameter on the local scour and pipeline vibration are investigated.
- Published
- 2019
- Full Text
- View/download PDF