基于OLGA的机动管线气顶排空过程数值模拟

发布时间：2018-06-28 13:10

本文选题：机动管线 + OLGA　；参考：《高校化学工程学报》2017年02期

【摘要】：利用全动态多相流模拟软件OLGA(Oil and Gas),对水平机动管线气顶排空过程管内气液混合物流动规律进行了数值模拟研究。重点研究了流量、压力、持液率随时间的变化规律,得到了入口初始排气压力0.5、0.7和0.9 MPa三种边界条件下管道内部节点的流量、压力、持液率变化曲线,并与实验进行对比。计算结果表明:数值模拟结果与实验测试结果吻合较好,排空时间的仿真值在入口压力为0.9 MPa时最接近实验值,其余工况均小于实验值。液体前锋到达测试点前,流量的仿真值和实验值吻合较好,压力仿真值大于实验值,持液率仿真与实验值相同;液体前锋到达测试点之后,流量、压力和持液率的仿真值均小于实验值。根据实验管路结构和数值计算方法分析了以上现象的原因,验证了利用OLGA进行机动管线气顶排空数值模拟的可行性。
[Abstract]:A numerical simulation of gas-liquid mixture flow in a horizontal maneuvering pipeline during gas-top emptying was carried out by using the full-dynamic multiphase flow simulation software (OLGA). The variation law of flow rate, pressure and liquid holdup with time is studied emphatically, and the flow, pressure and liquid holdup curves of internal nodes of pipeline under three boundary conditions of inlet initial exhaust pressure of 0.50.7 and 0.9 MPA are obtained and compared with experiments. The calculated results show that the numerical simulation results are in good agreement with the experimental results. The simulation values of the emptying time are the closest to the experimental values when the inlet pressure is 0.9 MPA, and the rest of the conditions are smaller than the experimental values. Before the liquid front reaches the test point, the simulation value of the flow rate is in good agreement with the experimental value, the pressure simulation value is larger than the experimental value, and the liquid holdup simulation value is the same as the experimental value. The simulation values of pressure and liquid holdup are smaller than the experimental values. According to the experimental pipe structure and numerical calculation method, the causes of the above phenomena are analyzed, and the feasibility of using OLGA to simulate the gas top emptying of mobile pipeline is verified.
【作者单位】：后勤工程学院军事供油工程系;
【基金】：后勤工程学院研究生创新基金(20151230)
【分类号】：O359.1

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