海底管道泄漏参数灵敏度分析

Analysis on the Sensitivity of Submarine Pipeline Leakage Parameters

文章利用FLUENT软件中的欧拉模型,对海底管道油气两相泄漏进行仿真,分别模拟没有气体扩散及有气体扩散的情况,考虑了气泡尺寸、海流、泄漏率及油的种类等因素对油气运动形态的影响,采用灵敏度理论,计算出油在水下漂移距离及到达水面的时间的灵敏度。计算结果表明,泄漏率对油到达水面的时间的灵敏性最高,海流对油在水下漂移距离的灵敏性最高。该灵敏度分析结果可为管道泄漏应急决策提供理论依据。

In this paper, the FLUENT software is used to simulate the two phase（oil and gas） leakage of submarine pipelines. The effects of bubble size, ocean currents, leakage rate and oil kinds on the oil and gas flow are taken into account. The sensitivity theory is applied to calculate the sensitivity of the drift distance of oil underwater and of the time for the oil to reach the water surface, respectively. The calculating results show that the sensitivity of leakage rate is the highest when the oil reaches the water surface, and the sensitivity of ocean currents is the highest to the drift distance of the oil. The sensitivity analysis results can provide theoretical basis for Pipeline Leakage Emergency Decision Making.