导流板对海底管道绕流影响的数值模拟与试验研究  

Numerical simulation and experimental study on flow around submarine pipeline with spoiler

作　　者：张芝永[1] 拾兵[1] 范菲菲[1] 阮雪景[1] 

机构地区：[1]中国海洋大学工程学院,青岛266003

出　　处：《水动力学研究与进展（A辑）》2011年第5期597-605,共9页Chinese Journal of Hydrodynamics

基　　金：国家高技术研究发展计划(863)项目(2008AA09Z309)

摘　　要：采用试验研究和数值模拟相结合的方法为对海底管道添加导流板后的绕流特性进行了研究。数值模型利用有限体积法进行离散,湍流模型采用标准kε湍流模型。通过对比分析,数值模拟结果与试验结果吻合较好。同时对不同间隙比下导流板对迎流面前驻点、流速分布、管道表面压力分布、升阻力系数及床面剪应力的影响进行了分析,为海底管道冲刷及防护技术的进一步研究奠定了基础。In order to study the characteristics of flow around the submarine pipeline with spoiler, a novel method using experiment and numerical simulation is proposed in this paper. The numerical model is discredited by finite volume method and selects standard k -ε turbulence model. By contrastive analysis, the numerical results agree well with the experimental results. In addition, the spoiler＇s influences on the stagnation point of upstream, velocity field, pressure distribution of pipeline, drag coefficient, lift coefficient, and the seabed shear stress at various gap ratios are investigated. These results might be useful for further study of submarine pipeline erosion and protection.

关 键 词：海底管道 导流板 驻点 水动力 剪应力 

分 类 号：P75[天文地球—海洋科学]