【摘要】 本文将边界元法(BEM)和有限元法(FEM)相结合,用于求解热传导问题,按各类边界条件的一般情况导出了相应的两种耦合算法公式。这些耦合方法取BEM 和 FEM 两者之长而避其短,可提高计算精度,减少数据准备和计算工作量,并可用于某些用单一方法较难求解的问题。文中给出了算例,并将耦合法解与解析解、有限元解、边界元解、有限差分解作了比较。更多还原

【Abstract】 The paper describes two kinds of BEM-FEM coupling methods to solveheat transfer problems,and gives the related formulas which are fit for the different boundary conditions.These coupling methods can take thestrong points and avoid the weak points of the BEM and FEM,improvecalculating accuracy,reduce the data preparations,and can be used to solvesome problems which are difficult to solve by either of the two methods(BEM and FEM).Some numerical examples are illustrated and the resultscompared with the analytic ones and the ones by FEM,BEM and FinlteDifference Methods.更多还原