TY - JFULL AU - M. Behbahani-Nejad and Y. Shekari PY - 2008/8/ TI - Reduced Order Modeling of Natural Gas Transient Flow in Pipelines T2 - International Journal of Mechanical and Mechatronics Engineering SP - 867 EP - 872 VL - 2 SN - 1307-6892 UR - https://publications.waset.org/pdf/11519 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 19, 2008 N2 - A reduced order modeling approach for natural gas transient flow in pipelines is presented. The Euler equations are considered as the governing equations and solved numerically using the implicit Steger-Warming flux vector splitting method. Next, the linearized form of the equations is derived and the corresponding eigensystem is obtained. Then, a few dominant flow eigenmodes are used to construct an efficient reduced-order model. A well-known test case is presented to demonstrate the accuracy and the computational efficiency of the proposed method. The results obtained are in good agreement with those of the direct numerical method and field data. Moreover, it is shown that the present reduced-order model is more efficient than the conventional numerical techniques for transient flow analysis of natural gas in pipelines. ER -