论文标题
如何最大程度地减少陆上管道释放引起的环境污染：三维三相流体流量模型的关键作用
How to minimize the environmental contamination caused by hydrocarbon releases by onshore pipelines: The key role of a three-dimensional three-phase fluid flow numerical model
论文作者
论文摘要
由于存在溢出的油管道，污染物的影响和污染物迁移到周围环境中将对自然生态系统造成重大损害。因此，制定快速响应策略是决定性的，该策略可能包括数值模拟建模对石油迁移轨迹的准确预测。在本文中，采用了基于高分辨率冲击捕捉的保守方法的三维模型，以解决在变量饱和区中溢出的光非液态液体油污染物迁移的非线性局部偏微分方程，以大量准确地研究油管道泄漏的迁移。对油类型密度，汽油和柴油油的影响，不饱和区域深度，其饱和，液压梯度和压力油管道的影响通过污染物迁移的时间演化，随着污染物迁移的时间演化，随着三相流体在可变饱和区流动的三相流体的饱和度。计算结果表明，泄漏的油的压力是显着影响污染物到达地下水表的参数。同样，随着水饱和度增加固定深度，不饱和区域的水饱和会影响到达时间。不饱和区域的深度显着影响污染物迁移不饱和区。同时，油密度和液压梯度对可变饱和区域的污染物迁移的影响有限。
The contamination impact and the migration of the contaminant into the surrounding environment due to the presence of a spilled oil pipeline will cause significant damage to the natural ecosystem. For this reason, it is decisive to develop a rapid response strategy that might include accurate predictions of oil migration trajectories from numerical simulation modeling. In this paper, a three-dimensional model based on a high-resolution shock-capturing conservative method to resolve the nonlinear governing partial differential equations of the migration of a spilled light nonaqueous liquid oil contaminant in a variably saturated zone is employed to investigate the migration of the oil pipeline leakage with great accuracy. The effects on the oil type density, gasoline and diesel oil, the unsaturated zone depth, its saturation, the hydraulic gradient, and the pressure oil pipeline are investigated through the temporal evolution of the contaminant migration following the saturation profiles of the three-phase fluids flow in the variably saturated zone. The calculation results indicate that the leaking oil's pressure is the parameter that significantly affects the contaminants' arrival time to the groundwater table. Also, the water saturation of the unsaturated zone influences the arrival time as the water saturation increases for a fixed depth. The unsaturated zone depth significantly influences the contaminant migration unsaturated zone. At the same time, the oil density and the hydraulic gradient have limited effects on the contaminant migration in the variably saturated zone.
