气液混输管线与悬链线立管系统严重段塞流数值模拟.pdfVIP

第 28 卷第 1 期 Vo l. 28 No.1 中国海洋平台 2013 年 02 月 CHINA OFFSHORE PLATFORM Feb. .2013 文章编号:1001-4500(2013)01-0024-05 气液混输管线与悬链线立管系统严重段塞流数值模拟 吕明琦，高篱，李巍，尤云祥 (上海交通大学海洋工程国家重点实验室，上海 200240) 摘 要:针对气液混输管线与悬链线立管系统严重段塞流问题，采用严重段塞流形成条件一致的等效原 则，发展了一种将三维管道系统等效为二维管道系统的计算流体力学(CFD)数值模拟方法。以文献中某水平/ 下倾管与悬链线立管组合系统为对象，结合其实验工况，数值模拟了该种管型下的严重段塞流现象.分析了其 压力泼动幅值及周期变化特性，数值模拟与文献所述实验结果一致，表明了该数值模拟方法的有效性。 关键词:悬链线主管$两相流s 严重段塞流;流动参数 中图分类号: 0359.1 文献标识码:A Numerical Simulation for Severe Slug Flow in a Catenary Riser System with the Gas and Liquid Mixture Transportation LV Ming-qi , GAO Song , LI Wei , YOU Yun-xiang (State Key Laboratory of Ocean Engineering , Shanghai Jiaotong University , Shanghai 200240 , China) Abstract: Based on the consistence principle for the severe slugging formation condition , a CFO (Computational Fluid Oynamics) method was proposed for numerically simulating the gas-liquid severe slugging in a pipeline-riser system by means of translating the 30 pipeline- riser system into a 20 equivalent one. Numerical simulations were conducted for the gas-liquid flow patterns of the severe slugging in a horizonta l/declination pipeline-catenary riser system according to the experimental cases presented in the reference , and the pressure characteristics including period and its amplitude were analyzed due to such a severe slug flow , the numerical results are good agreements with the experimental ones in the refrence showing that the pro- posed method is effective. Key words: catenary riser; two-phase flow; severe