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摘要
Large-scale reservoir simulations are extremely time-consuming because of the solution of large-scale linear systems arising from the Newton or Newton-Raphson iterations. The problem becomes even worse when highly heterogeneous geological models are employed. This paper introduces a family of multi-stage preconditioners for parallel black oil simulations, which are based on the famous constrained pressure residual preconditioner. Numerical experiments demonstrate that our preconditioners are robust, efficient, and scalable.
- 出版日期2016-1
