@inproceedings{7e4678f7c96a4ba69894597d0f6f56db,
title = "Numerical study on steady flow around a pipeline laid on seabed with gaps",
abstract = "Copyright {\textcopyright} 2016 by the International Society of Offshore and Polar Engineers.This paper presents numerical results from three-dimensional Large Eddy Simulations (LES) of steady flow around a pipeline close to an uneven seabed with staggered gaps underneath it. It was found that even small gaps below a pipeline can lead to great changes in the hydrodynamics along the span, as well as the seabed shear stress. It is observed that the total forces can be calculated by independently considering the gap section and the embedded section; however, the spanwise variation in the configuration leads to much energetic vibrations in sectional forces. The instantaneous flow feature across the span, however, appears to be less affected by the gaps, where a coherent turbulent structure is found to develop in the upstream and break down above the pipeline.",
author = "Feifei Tong and Liang Cheng",
year = "2016",
language = "English",
isbn = "9781880653982",
series = "Proceedings of the 12th ISOPE Pacific-Asia Offshore Mechanics Symposium, PACOMS 2016",
publisher = "International Society of Offshore and Polar Engineers",
pages = "199--204",
editor = "Chung, {Jin S.}",
booktitle = "Proceedings of the 12th ISOPE Pacific-Asia Offshore Mechanics Symposium",
address = "United States",
note = "12th ISOPE Pacific-Asia Offshore Mechanics Symposium : PACOMS 2016 ; Conference date: 04-10-2016 Through 07-10-2016",
}