摘要
内部缺陷形状位置的识别是传热逆问题的重要研究课题．本文对带有内部缺陷的试件建立了二维传热模型,通过有限元法求解了在一定加热条件下试件表面的温度分布；并通过共轭梯度法,提出了根据表面所测温度分布识别试件内部缺陷形状,位置的计算方法．数值实验证明了算法的有效性．
The identification of subsurface defect is an important part of the inverse heat transfer problem. In the paper a two-dimensional heat transfer model is built and solved by finite element method, and along with the conjugate gradient method, an algorithm is presented for the identification of the shape and position of the irregular subsurface defect based on the thermographic temperature measurement. The numerical experiments certified the effectiveness of the algorithm.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2007年第2期304-306,共3页
Journal of Engineering Thermophysics
基金
海军工程大学自然科学基金项目(No.HGDJJ05009)
关键词
传热反问题
内部缺陷
共轭梯度法
inverse heat transfer problem
subsurface defect
conjugate gradient method
