For more information about this meeting, contact Victor Nistor, Jinchao Xu, Xiantao Li, Yuxi Zheng, Kris Jenssen, Hope Shaffer.
|Title:||Effective Preconditioners for Reservoir Simulation|
|Seminar:||Computational and Applied Mathematics Colloquium|
|Speaker:||Xiaozhe Hu, Penn State Mathematics|
|The most time-consuming part of modern reservoir simulation is solving a sequence of large scale and ill-conditioned Jacobian systems. In this work, we develop new effective preconditioners for solving these Jacobian systems. According to the different properties of the equations in the black oil model, the new preconditioning technique chooses appropriate auxiliary spaces for different parts of the Jacobian systems and designs effective solvers for each part. By combining the new preconditioners with Krylov subspace methods, we construct efficient and robust solvers, which can be generalized to more complicated models such as enhanced oil recovery. Numerical experiments including preliminary parallel implementation demonstrate the effectiveness and robustness of the preconditioners.|
Room Reservation Information
|Date:||01 / 13 / 2012|
|Time:||03:35pm - 04:25pm|