某天然气管道冲蚀破坏规律分析

Analysis of erosion failure of a natural gas pipeline

根据质量守恒、动量守恒及湍流的k-ε模型建立了天然气流经管道时的不可压缩流动模型,采用CFD技术对管道内流动进行求解,通过流场计算结果看出,进入管道的气流直接作用在对侧的壁面,大部分气流沿壁面向出口方向流动。

The incompressible flow model of the natural gas flowing through the pipeline is established based on the conservation of mass,momentum and turbulent k-e model. The flow in the pipeline is calculated by CFD technology and results show that the airflow enteringinthepipelinegoes againsttheopposite wallandmost oftheairflow along the wall to the outlet of the pipeline.