Fig. 12
From: Numerical study on small hole leakage and diffusion of hydrogen in buried pipelines

Variation curves of hydrogen volume fraction versus time at the monitoring point for buried pure hydrogen pipelines under different soil porosities.
From: Numerical study on small hole leakage and diffusion of hydrogen in buried pipelines

Variation curves of hydrogen volume fraction versus time at the monitoring point for buried pure hydrogen pipelines under different soil porosities.