T2SOLV: An enhanced package of solvers for the TOUGH2 family of codes

Conference · Sat Feb 01 00:00:00 EST 1997

OSTI ID:463589

Moridis, G J; Pruess, K ^[1]

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1. Lawrence Berkeley National Lab., CA (United States). Earth Sciences Div.

T2SOLV is an enhanced package of matrix solvers for the TOUGH2 family of codes.T2SOLV includes all the Preconditioned Conjugate Gradient (PCG) solvers used in T2CG1, the current solver package, as well as LUBAND, a new direct solver, and DLUSTB, a PCG solver based on the BiCGSTAB method. Additionally, T2SOLV includes the D4 grid numbering scheme and two sets of preprocessors. Results from test problems indicate that LUBAND is faster, more reliable and requires less storage than MA28, the BiCGSTAB solver is superior to the other PCG methods in T2SOLV, and that the preprocessors improve the performance of the PCG solvers and allow the solution of previously intractable problems.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE Assistant Secretary for Energy Efficiency and Renewable Energy, Washington, DC (United States)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 463589
• Report Number(s): LBNL-39496; CONF-970114-2; ON: DE97003720; TRN: AHC29709%%26
• Resource Relation: Conference: 22. Stanford workshop on geothermal reservoir engineering, Stanford, CA (United States), 27-29 Jan 1997; Other Information: PBD: Feb 1997
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
99 MATHEMATICS
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GEOTHERMAL FIELDS
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CALCULATION METHODS
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Geothermal Legacy