Reduced Numerical Model for Methane Hydrate Formation under Conditions of Variable Salinity. Time-Stepping Variants and Sensitivity

In this paper, we consider a reduced computational model of methane hydrate formation in variable salinity conditions, and give details on the discretization and phase equilibria implementation. We describe three time-stepping variants: Implicit, Semi-implicit, and Sequential, and we compare the acc...

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Bibliographic Details
Published in:Computation
Main Authors: Malgorzata Peszynska, Francis Medina, Wei-Li Hong, Marta Torres
Format: Text
Language:English
Published: Multidisciplinary Digital Publishing Institute 2015
Subjects:
methane hydrate
multiphase multicomponent flow and transport
reduced computational model
time-stepping
phase equilibria
Methane hydrate
Online Access:https://doi.org/10.3390/computation4010001
Description
Summary:In this paper, we consider a reduced computational model of methane hydrate formation in variable salinity conditions, and give details on the discretization and phase equilibria implementation. We describe three time-stepping variants: Implicit, Semi-implicit, and Sequential, and we compare the accuracy and efficiency of these variants depending on the spatial and temporal discretization parameters. We also study the sensitivity of the model to the simulation parameters and in particular to the reduced phase equilibria model.

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