UKCCSRC Two-Fluid Transient Flow Model for CO2 Pipeline Depressurisation

A UKCCSRC Call 1 project paper presents a validated two-fluid transient flow model for simulating outflow from failed high-pressure CO2 pipelines. The model accounts for thermal and mechanical non-equilibrium effects using constitutive relations for inter-phase transfer and couples fluid dynamics with a transient heat conduction model. The work was conducted by the British Geological Survey and validated with experimental data from UK/EC funded projects.

Use Cases

• Validate two-fluid transient flow models for CO2 pipeline depressurisation using the described constitutive relations for mass, heat, and momentum transfer.
• Analyze thermal non-equilibrium effects during depressurisation by coupling the fluid model with the finite difference transient heat conduction model.
• Perform parametric analysis of outflow scenarios following pipeline failure using the model's numerical solution details.

Strengths

• Model development and validation was supported by experimental data from multiple UK/EC funded projects.
• The model accounts for both thermal and mechanical non-equilibrium effects, a key complexity in depressurisation simulations.
• Project provenance is clear, linked to a specific UKCCSRC grant (UKCCSRC-C1-07) and a peer-reviewed publication with a DOI.

Limitations

• The dataset consists of a research paper and model description; no raw experimental data or structured tabular data is provided.
• Access to the underlying experimental data used for validation is not directly available through this record.
• The technical focus is highly specific to CO2 transport safety, limiting general applicability.

Provenance

Source

British Geological Survey (BGS), UKCCSRC Call 1 project.

Collection Method

Model development and validation using experimental data from other UK/EC funded projects.

Time Range

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Freshness

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Geography

United Kingdom.