Simulation of the system behavior of hydrate-bearing geologic media involves solving fully
coupled mass- and heat-balance equations. In this study, we develop a domain decomposition
approach for large-scale gas hydrate simulations with coarse-granularity parallel computation. This
approach partitions a simulation domain into small subdomains. The full model domain, consisting
of discrete subdomains, is still simulated simultaneously by using multiple processes/processors.
Each processor is dedicated to following tasks of the partitioned subdomain: updating
thermophysical properties, assembling mass- and energy-balance equations, solving linear
equation systems, and performing various other local computations. The linearized equation
systems are solved in parallel with a parallel linear solver, using an efficient interprocess
communication scheme. This new domain decomposition approach has been implemented into the
TOUGH+HYDRATE code and has demonstrated excellent speedup and good scalability. In this
paper, we will demonstrate applications for the new approach in simulating field-scale models for
gas production from gas-hydrate deposits.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:BVAU.2429/1166 |
| Date | 07 1900 |
| Creators | Zhang, Keni, Moridis, George J., Wu, Yu-Shu, Pruess, Karsten |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | text |
| Rights | Zhang, Keni |
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