Higher-resolution numerical solution for 2-D transient natural gas pipeline flows

S. O. Ibraheem, M. A. Adewumi

Research output: Contribution to conferencePaper

8 Scopus citations

Abstract

Reliable modeling and prediction of transients features in transmission pipelines are desirable for optimal control of gas deliverability, design and implementation of active controls, and modeling of operational behavior of network peripheral equipment (e.g., chokes, valves, compressors, etc.). A numerical procedure is developed to simulate transient phenomena in a 2-D natural gas flow. Natural gas flow in a pipe is governed by hydrodynamic equations that are highly non-linear and hyperbolic. In this paper, a special Runge-Kutta method is employed to model accurate evolution of flow characteristics. The upwind method of van Leer, in which the numerical flux vectors are split to match the directions of wave propagation, is chosen as the base solution algorithm. Furthermore, the Total Variation Diminishing (TVD) technique is employed to extend to higher-order accuracy in order to resolve sharp discontinuous fronts. Several test cases were simulated to validate the developed code. The numerical algorithm is very stable, and although the problems solved were stiff and possess multiple and disparate time scales, excellent prediction for the unsteady features, especially sharp wave front and proper front tracking, were obtained.

Original languageEnglish (US)
Pages473-482
Number of pages10
DOIs
StatePublished - Jan 1 1996
EventProceedings of the 1996 Gas Technology Symposium - Calgary, Can
Duration: Apr 28 1996May 1 1996

Other

OtherProceedings of the 1996 Gas Technology Symposium
CityCalgary, Can
Period4/28/965/1/96

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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    Ibraheem, S. O., & Adewumi, M. A. (1996). Higher-resolution numerical solution for 2-D transient natural gas pipeline flows. 473-482. Paper presented at Proceedings of the 1996 Gas Technology Symposium, Calgary, Can, . https://doi.org/10.2118/35626-ms