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热能动力工程专业“传热学”课程中,在讲述导热理论时,提出:傅立叶定律是导热理论的基本定律,它适用于一切导热过程。然而,随着科学技术的发展,工程实际中出现了越来越多的不再适用于傅立叶定律的导热现象——非傅立叶导热效应。非傅立叶导热效应的研究是当前传热学研究中的热点问题之一。本文从傅立叶定律的建立条件入手分析傅立叶定律的适用范围,并对非傅立叶导热效应及其研究动态作一综述。
Thermal Power Engineering “heat transfer ” course, in the theory of thermal conductivity, proposed: Fourier law is the basic law of thermal conductivity theory, it applies to all thermal processes. However, with the development of science and technology, more and more thermal phenomena that no longer apply to Fourier’s law-non-Fourier thermal effect-appear more and more in engineering practice. The study of non-Fourier thermal conductivity is one of the hot issues in the current heat transfer research. In this paper, the application of Fourier’s law is analyzed based on the establishment of Fourier’s law, and the non-Fourier thermal conductivity and its research trends are reviewed.