Publications by authors named "Zhuan Ge"
Article Synopsis
- Traditional fluid dynamics (Navier-Stokes equations) fail to accurately predict the flow rates of nanoconfined fluids, resulting in discrepancies with experimental measurements of up to five orders of magnitude.
- An unusual correlation was observed where the enhancement of fluid flow varies non-linearly with pressure in 2 nm diameter carbon nanotubes, indicating complex behavior not captured by standard models.
- Molecular dynamics simulations suggest that these flow inconsistencies are due to phase transitions in the fluid caused by pressure, influenced by hydrogen bonding and water alignment, highlighting the importance of pressure-dependent molecular structures in understanding fluid behavior.
Both intra-pore hydrate morphology and inter-pore hydrate distribution influence the physical properties of hydrate-bearing sediments, yet there has been no pore-scale observations of hydrate habit under pressure in preserved pressure core samples so far. We present for the first time a pore-scale micro-CT study of natural hydrate-bearing cores that were acquired from Green Canyon Block 955 in UT-GOM2-1 Expedition and preserved within hydrate pressure-temperature stability conditions throughout sub-sampling and imaging processes. Measured hydrate saturation in the sub-samples, taken from units expected to have in-situ saturation of 80% or more, ranges from 3 ± 1% to 56 ± 11% as interpreted from micro-CT images.
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