摘要
基于带有一个热松弛时间的非傅里叶热传导模型,研究了一维方向上热波传播问题的数值模拟分析。该文给出了物体受到瞬时降温或升温的CV热传导方程,借助有限差分方法对控制方程进行求解。计算得到了一维物体内热波传递的分布规律,从其分布图上可以看出,热量的传播是以波动形式进行传递的,且会存在波峰波谷现象。
Based on Non-Fourier heat conduction model with a thermal relaxation time, the analysis of numerical simulation of the thermal wave propagation on one-dimensional direction has been studied. In this paper, the equation of CV heat conduction with an object received instantaneous cooling or warming has been given and solved by the finite difference method. The distribution of heat wave in one-dimensional objects has been calculated. As can be seen from its distribution, the transfer of heat propagation is in the form of fluctuations, and there is phenomenon of peaks and valleys.
出处
《中国西部科技》
2015年第3期117-119,共3页
Science and Technology of West China
基金
浙江省教育厅科研项目(Y201329679):瞬态热传导过程中混凝土结构的非傅里叶导热效应研究
浙江省重中之重学科开放基金项目(Zj1209):热波在混凝土中的传播
关键词
热松弛时间
非傅里叶
热波
有限差分
Thermal Relaxation Time
Non-Fourier
Heat Wave
Finite Difference
