非线性二维稳态导热反问题的一种新解法

In this paper, a simple and effective method is presented to solve the two-dimensionalnonlinear steady inverse heat conduction problem. From the finite difference equation of heatconduction, the convective heat transfer coefficient, which is the unknown boundary, can benumerially obtained with this method. By taking the electrically heated helically coiled tubeas an experimental case, this method is successfully applied. It is proved by numerical teststhat this method takes the advantages of fast coverging, high precision and good stability.It can also be extended to the complex geometrics problems.