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Analysis of transient PIG motion in natural gas pipeline

机译:天然气管道中瞬时PIG运动分析

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摘要

In this study, the dynamic analysis of Pipeline Inspection Gauge (PIG) flow control in natural gas and liquid pipeline is considered. The basic equations are differential forms of the mass and linear momentum for compressible liquid and gas flows. The fluid flow equations and a linear momentum equation of the PIG are solved simultaneously using an appropriate numerical method. Solution of these nonlinear equations results in a set of diagrams for the variations of the fluid pressure, mass flow rate of the gas and the PIG velocity through the pipeline. Comparing the results of mathematical model for the PIG with the established experimental data in a segment of Ahwaz gas pipeline shows a good agreement between the measurements and computations.
机译:在这项研究中,考虑了天然气和液体管道中管道检查规(PIG)流量控制的动态分析。基本方程是可压缩液体和气体流动的质量和线性动量的微分形式。使用适当的数值方法同时求解PIG的流体方程和线性动量方程。这些非线性方程的解决方案产生了一组图表,用于说明流体压力,气体质量流量和通过管道的PIG速度的变化。将PIG数学模型的结果与在阿瓦士天然气管道的一段中建立的实验数据进行比较,表明测量和计算之间具有良好的一致性。

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