Mixed-hybrid Finite Element Approximation of the Potential Fluid Flow Problem
نویسنده
چکیده
In the paper a mixed-hybrid approximation of the potential uid ow problem based on prismatic discretization of the domain is presented. Trilateral prismatic elements with vertical faces and nonparallel bases suitable for the modelling of real geological circumstances are considered. The set of linearly independent vector basis functions is deened and existence and uniqueness of the approximate solution from the resulting symmetric indee-nite system are examined. Possible approaches to the solution of the discretized system are discussed.
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