Comparing Some Methods and Preconditioners for Hydropower Plant Flow Simulations

Authors:
Luiz M. Carvalho;Wagner Fortes;Luc Giraud
Affiliations:
Group of Environmental Studies of Hydropower Reservoirs (GESAR), Rio de Janeiro State University, Rio de Janeiro, Brazil 20550-013;Group of Environmental Studies of Hydropower Reservoirs (GESAR), Rio de Janeiro State University, Rio de Janeiro, Brazil 20550-013;ENSEEIHT-IRIT, Toulouse, France
Venue:
High Performance Computing for Computational Science - VECPAR 2008
Year:
2008

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Abstract

We describe some features of a three-dimensional numerical simulator currently under development for studying water physico-chemical properties during the flooding of hydroelectric plants reservoirs. The work is sponsored by the Brazilian Electric Energy National Agency (ANEEL) and conducted with Furnas Centrais Elétricas S. A., the leading Brazilian power utility company. An overview of the simulator requirements is given. The mathematical model, the software modules, and engineering solutions are briefly discussed, including the finite element based transport module. We compare methods, iterative methods and preconditioners used to solve the sparse linear systems which arise from the discretization of three-dimensional partial differential equations.