About using the Dirichlet boundary conditions in heat transfer equation solved lay finite element method
In the variational approach for heat equation, the Newmann, convection and radiation B.C. are already built in this expression. The Dirichlet (imposed temperature) must be applied after the matrix formulation was derived, for the analyzed system. This paper presents a study about the performances (precision and execution speed) using different methods to input the Dirichlet BC. These estimations are made on program which uses triangular elements, to solve the heat equation.
dirichlet boundary conditions heat transfer finite element