Search Results - subject:"Mixed finite element"

Mixed finite element method and the characteristics-mixed finite element method for a slightly compressible miscible displacement problem in porous media

Sun, Tongjun; Yuan, Yirang - In: Mathematics and Computers in Simulation (MATCOM) 107 (2015) C, pp. 24-45

scheme is introduced for this system, which is constructed by two methods. A standard mixed finite element is used for the … pressure equation. A characteristic-mixed finite element method is presented for the concentration equation. Characteristic … approximation is applied to handle the convection part of the concentration equation, and a lowest order mixed finite element …

Persistent link: https://www.econbiz.de/10011077429

Characteristic mixed finite element approximation of transient convection diffusion optimal control problems

Zhou, Zhaojie; Chen, Fengxin; Chen, Huanzhen - In: Mathematics and Computers in Simulation (MATCOM) 82 (2012) 11, pp. 2109-2128

In this paper, we investigate a characteristic mixed finite element approximation of transient convection diffusion … optimal control problems. The state and the adjoint state are approximated by characteristic mixed finite element method …

Persistent link: https://www.econbiz.de/10010751878

A convergence of a MFE-FV method for immiscible compressible flow in heterogeneous porous media

El Ossmani, Mustapha - In: Mathematics and Computers in Simulation (MATCOM) 81 (2011) 10, pp. 2103-2128

(the saturation equation). A mixed finite element (MFE) method is used to discretize the pressure equation and is combined …

Persistent link: https://www.econbiz.de/10011050249

A split least-squares characteristic mixed finite element method for Sobolev equations with convection term

Gao, Fuzheng; Rui, Hongxing - In: Mathematics and Computers in Simulation (MATCOM) 80 (2009) 2, pp. 341-351

In this paper, a split least-squares characteristic mixed finite element method for a kind of Sobolev equation with …

Persistent link: https://www.econbiz.de/10011050494

A least squares finite element method with high degree element shape functions for one-dimensional Helmholtz equation

Cadenas, Carlos E.; Rojas, Javier J.; Villamizar, Vianey - In: Mathematics and Computers in Simulation (MATCOM) 73 (2006) 1, pp. 76-86

An application of least squares finite element method (LSFEM) to wave scattering problems governed by the one-dimensional Helmholtz equation is presented. Boundary conditions are included in the variational formulation following Cadenas and Villamizar’s previous paper in Cadenas and Villamizar...

Persistent link: https://www.econbiz.de/10010870338