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本文建立了海底管道油气两相混合输送的数学模型。分析中采用双流体模型,并应用四阶龙格-库塔法对稳态模型进行求解。文中设置了多组算例对模型及程序进行验证,结果表明该数值模拟方法是研究油气混输的海底管道稳态运行的一种有效方法。
In this paper, a mathematic model of oil-gas mixed transport in submarine pipeline was established. In the analysis, a two-fluid model is adopted, and the fourth-order Runge-Kutta method is used to solve the steady-state model. Several sets of examples are set up to validate the model and program. The results show that the numerical simulation method is an effective method to study the steady operation of submarine pipelines with oil and gas transportation.