A Composite of FEM and BIM Dealing with Neumann and Dirichlet Boundary Conditions for Open Boundary magnetic Field Problems

개량역 자장간의 해석에 있어서 Neumann 및 Diichlet 경계조건을 고려한 유한요소법 및 경계적분법

A new composite method of finite element and boundary integral methods is presented to solve the two dimensional magnetostatic field problems with open boundary. The method can deal with the current source of the boundary integral regin where the boundary integral method is applied, and also Neumann and Dirichlet boundary conditions at the interfacial boundary between the boundary integral region and the finite element region where the finite element method is applied. The new approach has been applied to a simple linear problem to verify the usefulness. It is shown that the proposed algorithm gives more accurate results than the finite element methed under the same elementdiscretization.