用频域回归方法计算圆柱形墙体的瞬时热流

Calculation for Transient Heat Flow of Cylinder Wall Using Frequency-domain

给出了多层圆柱形墙体的传热传递矩阵 ,提出了计算圆柱形墙体瞬时传热的频域回归 ( FDR)方法 .用 FDR方法计算了圆柱形墙体的响应系数及瞬时热流 .结果表明 :用 FDR方法计算圆柱形墙体的瞬时热流不仅简单可靠 ,而且精度高。

The transmission matrix of multi layer cylinder wall is presented,and the frequency domain regression(FDR)method to calculate transient heat flow through cylinder wall is introduced.The response factors and its transient heat flow are calculated using FDR method.The results indicate that this method is not only simple and reliable,but also has high accuracy and computation speed.