Massively parallel simulation of flow and transport in variably saturated porous and fractured media

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This paper describes a massively parallel simulation method and its application for modeling multiphase flow and multicomponent transport in porous and fractured reservoirs. The parallel-computing method has been implemented into the TOUGH2 code and its numerical performance is tested on a Cray T3E-900 and IBM SP. The efficiency and robustness of the parallel-computing algorithm are demonstrated by completing two simulations with more than one million gridblocks, using site-specific data obtained from a site-characterization study. The first application involves the development of a three-dimensional numerical model for flow in the unsaturated zone of Yucca Mountain, Nevada. The second application is the ... continued below

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Wu, Yu-Shu; Zhang, Keni & Pruess, Karsten January 15, 2002.

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This paper describes a massively parallel simulation method and its application for modeling multiphase flow and multicomponent transport in porous and fractured reservoirs. The parallel-computing method has been implemented into the TOUGH2 code and its numerical performance is tested on a Cray T3E-900 and IBM SP. The efficiency and robustness of the parallel-computing algorithm are demonstrated by completing two simulations with more than one million gridblocks, using site-specific data obtained from a site-characterization study. The first application involves the development of a three-dimensional numerical model for flow in the unsaturated zone of Yucca Mountain, Nevada. The second application is the study of tracer/radionuclide transport through fracture-matrix rocks for the same site. The parallel-computing technique enhances modeling capabilities by achieving several-orders-of-magnitude speedup for large-scale and high resolution modeling studies. The resulting modeling results provide many new insights into flow and transport processes that could not be obtained from simulations using the single-CPU simulator.

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INIS; OSTI as DE00791815

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  • XIV International Conference on Computational Methods in Water Resources, Delft (NL), 06/23/2002--06/28/2002

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  • Report No.: LBNL--49407
  • Grant Number: AC03-76SF00098
  • Office of Scientific & Technical Information Report Number: 791815
  • Archival Resource Key: ark:/67531/metadc733967

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  • January 15, 2002

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  • Oct. 19, 2015, 7:39 p.m.

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  • April 4, 2016, 1:35 p.m.

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Wu, Yu-Shu; Zhang, Keni & Pruess, Karsten. Massively parallel simulation of flow and transport in variably saturated porous and fractured media, article, January 15, 2002; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc733967/: accessed August 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.