Abstract
The Galerkin-Petrov least squares method is combined with the mixed finite element method to deal with the stationary, incompressible magnetohydrodynamics system of equations with viscosity. A Galerkin-Petrov least squares mixed finite element format for the stationary incompressible magnetohydrodynamics equations is presented. And the existence and error estimates of its solution are derived. Through this method, the combination among the mixed finite element spaces does not demand the discrete Babuška-Brezzi stability conditions so that the mixed finite element spaces could be chosen arbitrartily and the error estimates with optimal order could be obtained.
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Communicated by ZHOU Zhe-wei
Project supported by the National Natural Science Foundation of China (Nos. 10471100 and 40437017) and the Science and Technology Foundation of Beijing Jiaotong University
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Luo, Zd., Mao, Yk. & Zhu, J. Galerkin-Petrov least squares mixed element method for stationary incompressible magnetohydrodynamics. Appl Math Mech 28, 395–404 (2007). https://doi.org/10.1007/s10483-007-0312-x
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DOI: https://doi.org/10.1007/s10483-007-0312-x
Key words
- equation of magnetohydrodynamics
- mixed element method
- Galerkin-Petrov least squares method
- error estimate