Numerical Investigation of Hydrogen Leakage Quantification and Dispersion Characteristics in Buried Pipelines.

ABSTRACT: As a clean energy carrier, hydrogen is essential for global low-carbon energy transitions due to its unique combination of safe transport properties and energy density. This investigation employs computational fluid dynamics (ANSYS Fluent) to systematically characterize hydrogen dispersion through soil media from buried pipelines. The research reveals three fundamental insights: First, leakage orifices smaller than 2 mm demonstrate restricted hydrogen migration regardless of directional orientation. Second, dispersion patterns remain stable under both low-pressure conditions (below 1 MPa) and minimal thermal gradients, with pipeline temperature variations limited to 63 K and soil fluctuations under 40 K. Third, dispersion intensity increases proportionally with higher leakage pressures (ex

SUBMITTER: Tian Y 

PROVIDER: S-EPMC12526168 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature