Abstract
Methane hydrate dissociation was numerically simulated in a water-rich sand layer by a 3D CFD method with unstructured grid systems. We modeled the sand layer as spherical sand particle locating in a face-centered cubic lattice. In this model sand layer, three cases of methane hydrate morphology are assumed: pore-coating, pore-bridging, and pore-filling models. The resultant penetration and dissociation rates were compared well with existing experimental results.
