Numerical simulation of a gas pipeline network using computational fluid dynamics simulators

查看全文 作　　者：SELEZNEV [1]Vadim 机构地区：[1]Physical and Technical Center,Joint Stock Company,Sarov,607180,Russia 出　　处：《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》索引2007年第8卷第5期,共11页 摘　　要：This article describes numerical simulation of gas pipeline network operation using high-accuracy computational fluid dynamics (CFD) simulators of the modes of gas mixture transmission through long, multi-line pipeline systems (CFD-simulator). The approach used in CFD-simulators for modeling gas mixture transmission through long, branched, multi-section pipelines is based on tailoring the full system of fluid dynamics equations to conditions of unsteady, non-isothermal processes of the gas mixture flow. Identification, in a CFD-simulator, of safe parameters for gas transmission through compressor stations amounts to finding the interior points of admissible sets described by systems of nonlinear algebraic equalities and inequalities. Such systems of equalities and inequalities comprise a formal statement of technological, design, operational and other constraints to which operation of the network equipment is subject. To illustrate the practicability of the method of numerical simulation of a gas transmission network, we compare computation results and gas flow parameters measured on-site at the gas transmission enter-prise. 关 键 词：天然气管网 数值模拟 计算流体动力学模拟器 长支线 运行参数