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首页> 外文期刊>Chemical Engineering Research & Design: Transactions of the Institution of Chemical Engineers >Simulation of transient gas flow using the orthogonal collocation method
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Simulation of transient gas flow using the orthogonal collocation method

机译:模拟的瞬态气体流动使用正交配置方法

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摘要

Proper evaluation of the dynamics of the transmission system is the key element in the design and operation of natural gas pipelines. Basic equations describing the transient flow of gas in pipes are derived from the Euler equations. The orthogonal collocation technique is employed as the mathematical method for the numerical solution of the governing equations. This method leads to a set of non-linear ordinary differential equations which can be solved by the Runge-Kutta-Fehlberg method. The performance of the proposed method is tested using two practical examples. The predicted results clearly demonstrate that the proposed method can successfully simulate the isothermal and non-isothermal unsteady flow in gas transmission systems.
机译:适当的动态评价传输系统是关键要素天然气管道的设计和操作。描述瞬变流动的基本方程气体管道来自欧拉方程。采用数学方法吗控制方程的数值解。这种方法会导致一组非线性普通微分方程可以解决的Runge-Kutta-Fehlberg方法。该方法使用两个测试实用的例子。证明该方法成功地模拟等温和非等温非定常流的天然气传输系统。

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