2004•重庆大学学报：英文版Requires access
Two-grid method for characteristic mixed finite-element solutions of nonlinear convection-diffusion equations
QINXinqiang, MAYichen, GONGChunqiongt
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Abstract
A two-grid method for solving nonlinear convection-dominated diffusion equations is presented. The method use discretizations based on a characteristic mixed finite-element method and give the linearization for nonlinear systems by twosteps. The error analysis shows that the two-grid scheme combined with the characteristic mixed finite-element method candecrease numerical oscillation caused by dominated convections and solve nonlinear advection-dominated diffusion problemsefficiently.