摘要
本文基于非傅里叶导热定律,采用波函数展开法,研究了含双圆柱缺陷非透明半无限体中热传播问题,给出了基于热传导波动模型的热波散射问题的一般解．温度波由调制光束在材料表面激发,缺陷表面的边界条件为绝热,分析了各物理参数对温度分布的影响,特别是热波波长对温度变化的影响,并给出了温度变化的数值结果。
In this paper, based on non-Fourier＇s law of heat conductivity, using the expansion method of wave functions the thermal wave scattering of two subsurface cylinders in semi-finite solids is investigated. A general solution of scattered wave based on wave equations of heat conduction is given. The effect of physical parameters on the temperature distribution is analyzed. The thermal waves are excited at surfaces of opaque materials by modulated optical beams. The circular cylinder is taken as a cavity with thermal insulation conditions. At last, numerical results are presented graphically.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2006年第3期502-504,共3页
Journal of Engineering Thermophysics
基金
国家自然科学基金重点项目资助(No.50336010)
关键词
非傅里叶导热
热波
多重散射
红外成像
亚表面缺陷
non-fourier＇s law
thermal wave
multiple scattering
infrared imaging
subsurface defect
