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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。
The method of combining experimental study and numerical simulation was used to study the flow around the submarine pipe after it was added. The numerical model is discretized using the finite volume method and the turbulence model uses the standard kε turbulence model. Through comparative analysis, the numerical simulation results are in good agreement with the experimental results. At the same time, the effect of different deflector ratios on stagnation point, flow velocity distribution, pressure distribution on pipe surface, lift resistance coefficient and bed shear stress at different clearance ratios were analyzed, which laid the foundation for further research on submarine pipeline scouring and protection technology basis.