Stability of dynamic fluid transport simulations

Pipeline transport is an efficient method for transporting fluids in energy supply and other technical applications. While natural gas is the classical example, the transport of hydrogen is becoming more and more important; both are transmitted under high pressure in a gaseous state. Also relevant i...

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Bibliographic Details
Published in:Journal of physics. Conference series 2024-02, Vol.2701 (1), p.12009
Main Authors: Anvari, Mehrnaz, Baldin, Anton, Clees, Tanja, Klaassen, Bernhard, Nikitin, Igor, Nikitina, Lialia, Pott, Sabine
Format: Article
Language:English
Subjects:
Carbon dioxide
Compressors
Dynamic stability
Gas pipelines
High pressure
Natural gas
Regularization
Regularization methods
Simulation
Transport equations
Underground storage
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Summary:Pipeline transport is an efficient method for transporting fluids in energy supply and other technical applications. While natural gas is the classical example, the transport of hydrogen is becoming more and more important; both are transmitted under high pressure in a gaseous state. Also relevant is the transport of carbon dioxide, captured in the places of formation, transferred under high pressure in a liquid or supercritical state and pumped into underground reservoirs for storage. The transport of other fluids is also required in technical applications. Meanwhile, the transport equations for different fluids are essentially the same, and the simulation can be performed using the same methods. In this paper, the effect of control elements such as compressors, regulators and flaptraps on the stability of fluid transport simulations is studied. It is shown that modeling of these elements can lead to instabilities, both in stationary and dynamic simulations. Special regularization methods were developed to overcome these problems. Their functionality also for dynamic simulations is demonstrated for a number of numerical experiments.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/2701/1/012009