Radial integration BEM for steady convection-conduction problem with spatially variable velocity and thermal conductivity

摘要: Abstract In this paper, the radial integration boundary element method without internal cells is presented for solving steady convection-conduction problem with spatially variable velocity and thermal conductivity. The temperature integral equation derived by employing fundamental solution potential (Green function) as well normalized conductivity, which results in appearance of domain integrals including unknown temperature. To avoid evaluating use cells, transformation to carried out approximating compactly supported fourth-order spline basis function combined polynomials global coordinates. Finally, a pure algorithm some selected nodes established analysis problems Three numerical examples are given demonstrate accuracy effectiveness present method.