CFD-Based Erosion and Corrosion Modeling of a Pipeline with CO 2 -Containing Gas–Water Two-Phase Flow

Weiqiang Wang, Yihe Sun, Bo Wang, Mei Dong and Yiming Chen
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Weiqiang Wang: State Key Laboratory of Oil and Gas Storage and Transportation Engineering, Liaoning Shihua University, Fushun 113001, China
Yihe Sun: State Key Laboratory of Oil and Gas Storage and Transportation Engineering, Liaoning Shihua University, Fushun 113001, China
Bo Wang: Department of Petroleum Systems Engineering, University of Regina, Regina, SK S4S 0A2, Canada
Mei Dong: State Key Laboratory of Oil and Gas Storage and Transportation Engineering, Liaoning Shihua University, Fushun 113001, China
Yiming Chen: Department of Petroleum Systems Engineering, University of Regina, Regina, SK S4S 0A2, Canada

Energies, 2022, vol. 15, issue 5, 1-14

Abstract: A natural gas transportation pipeline with a gas–water two-phase flow containing CO 2 is prone to severe flow-assisted corrosion (FAC). The accumulation location of the water phase in the pipeline and the wall shear stress distribution are important factors affecting the severity of this phenomenon. In this work, computational fluid dynamics (CFD) simulations were performed using the realizable k-ε model and volume of fluid (VOF) model to determine the gas–water volume fraction distribution and wall shear stress in a gas–water two-phase pipeline and established a pipeline corrosion prediction model. By determining where the water phase accumulates in the pipeline, the potential corrosion area could be predicted. By alleviating the phenomena of excessive local wall shear stress and bubble cavitation, the FAC due to the formation of stress and acid gas can be controlled. The simulation results lay a certain foundation for the corrosion research of gas–liquid two-phase flow pipelines.

Keywords: acid dissolved gas; natural gas pipeline; gas–water two-phase flow; flow-assisted corrosion; bubble cavitation; wall shear stress; CFD simulation (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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