摘要
本文讨论了边界元法在热传导反问题分析中的有效性,根据实测数据用轴对称边界元法反求边界上的换热系数,并同时确定柴油机的活塞温度场分布。计算结果表明,边界元法在处理这类问题时具有精度可控制、计算工作量小、计算时间比传统经验公式试凑法大为减少的优点。
In the first part of this paper,the effectiveness of solution of inverse heat conduction problems by means of BEM is discussed. In the second part of this paper, according to measured results, the boundary heat exchange coefficient is solved inversely by axisymmetric BEM and the piston temperature field is determined. Actual calculation shows the accuracy of these solutions using BEM could be controled and the amount of work and time spent on new method are much less than that of the old method.
