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Title: Operator splitting method for simulation of dynamic flows in natural gas pipeline networks

Journal Article · · Physica. D, Nonlinear Phenomena
 [1]; ORCiD logo [2];  [3]; ORCiD logo [4]
  1. Univ. of Illinois, Urbana-Champaign, IL (United States). Dept. of Mathematics
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  3. Univ. of New Mexico, Albuquerque, NM (United States). Dept. of Mathematics & Statistics; L. D. Landau Inst. for Theoretical Physics, Moscow (Russia)
  4. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Energy System Center, Skoltech, Moscow (Russia)

Here, we develop an operator splitting method to simulate flows of isothermal compressible natural gas over transmission pipelines. The method solves a system of nonlinear hyperbolic partial differential equations (PDEs) of hydrodynamic type for mass flow and pressure on a metric graph, where turbulent losses of momentum are modeled by phenomenological Darcy-Weisbach friction. Mass flow balance is maintained through the boundary conditions at the network nodes, where natural gas is injected or withdrawn from the system. Gas flow through the network is controlled by compressors boosting pressure at the inlet of the adjoint pipe. Our operator splitting numerical scheme is unconditionally stable and it is second order accurate in space and time. The scheme is explicit, and it is formulated to work with general networks with loops. We test the scheme over range of regimes and network configurations, also comparing its performance with performance of two other state of the art implicit schemes.

Research Organization:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE Office of Electricity Delivery and Energy Reliability (OE); USDOE Advanced Research Projects Agency - Energy (ARPA-E)
Grant/Contract Number:
AC52-06NA25396; AR0000673
OSTI ID:
1394973
Report Number(s):
LA-UR--16-29073
Journal Information:
Physica. D, Nonlinear Phenomena, Journal Name: Physica. D, Nonlinear Phenomena Vol. 361; ISSN 0167-2789
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (23)

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A new model for gas flow in pipe networks journal July 2009
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An implicit method for transient gas flows in pipe networks journal October 1994
Transient modeling of non-isothermal, dispersed two-phase flow in natural gas pipelines journal February 2010
Optimal control of transient flow in natural gas networks conference December 2015
Coupling Conditions for Networked Systems of Euler Equations journal January 2008
Modelling and optimization of supply chains on complex networks journal January 2006
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A new model for gas flow in pipe networks journal July 2009
Multiscale modeling for gas flow in pipe networks journal August 2007
Model Order Reduction of Differential Algebraic Equations Arising from the Simulation of Gas Transport Networks book January 2014
Analytical and numerical aspects of certain nonlinear evolution equations. II. Numerical, nonlinear Schrödinger equation journal August 1984
Unsteady and transient flow of compressible fluids in pipelines—a review of theoretical and some experimental studies journal March 1987
An implicit method for transient gas flows in pipe networks journal October 1994
Cascading of fluctuations in interdependent energy infrastructures: Gas-grid coupling journal December 2015
Transient modeling of non-isothermal, dispersed two-phase flow in natural gas pipelines journal February 2010
Optimal control of transient flow in natural gas networks conference December 2015
On the Construction and Comparison of Difference Schemes journal September 1968
Coupling Conditions for Networked Systems of Euler Equations journal January 2008
An Interior Trust Region Approach for Nonlinear Minimization Subject to Bounds journal May 1996
Coupling conditions for gas networks governed by the isothermal Euler equations journal January 2006

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