摘要
输油管道泄漏后不仅造成巨大的经济损失,还会带来严重的环境污染,对生命造成潜在的威胁。目前关于管道泄漏扩散模型的研究多适用于埋地管道及架空输气管道,对于水下管道泄漏扩散问题的研究还很少。基于有限容积法建立水下输油管道泄漏扩散多相流(VOF)模型,借助CFD软件数值计算了影响原油扩散的因素,通过对比发现:当泄漏速度相同,水流对油相运动影响逐渐增强,而浮力对油滴作用减弱,溢油将在河底运动距离变大;随着泄漏速度增大,溢油在水下水平移动距离变小,在水气界面位置距离漏油点的水平距离变小;当泄漏速度较小时,由于其水下扩展范围广,形成水面油膜面积相对变大。
Leakage of oil conveying pipeline not only causes huge economic loss, but also bring serious environmental pollution, even poses potential threat to life. Up till now, there have been many pipeline leakage diffusion model research about buried and aerial gas pipes but rare ones on underwater pipeline leakage diffusion issues. Adopting the finite volume method to establish the underwater pipeline leak diffusion multi -phase （VOF） model, using CFD software to simulate the influencing factors of crude oil diffusion, by comparing we found： with leakage at the same rate, water to oil phase movement is gradually strengthenning, but buoyancy effect on the oil droplets is abating, the movement distance of spilling oil increases; when the leakage velocity increases, the movement distance of spilling oil decreases, horizontal distance on hydrosphere interface to the oil leakage point decreases; when leakage velocity decreases, because of its underwater extended range, the surface oil film area is relatively larger.
出处
《节能技术》
CAS
2011年第4期311-314,共4页
Energy Conservation Technology
基金
辽宁省自然基金(20082186)
关键词
输油管道
泄漏
有限容积法
oil pipeline
leakage
finite volume method
作者简介
作者简介：王卫强（1974～），男，博士，副教授，从事长距离油品输送技术研究。
