集中热流作用下块状基底温度场的动力学特性

IF 0.5 4区工程技术 Q4 ENGINEERING, AEROSPACE

Thermophysics and Aeromechanics Pub Date : 2024-12-13 DOI:10.1134/S0869864324030132

A. I. Fedorchenko, V. V. Terekhov, N. Yan Lun

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引用次数: 0

摘要

本文介绍了在向大块固体样品表面集中供热的情况下，对该样品内部热量分布问题进行分析求解的结果。利用积分余弦傅里叶变换和汉克尔变换，获得了物体内部非稳态温度分布的分析表达式。举例说明了在激光辐射作用下估算模型次共晶钢达到切尔诺夫点 Ac1 和 Ac3 的特征时间的解决方案应用。此外，还展示了该解决方案在计算受空气和水射流影响的 Al2O3 和 SiO2 陶瓷样品冷却动力学中的应用。

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Dynamics of the temperature field in a massive substrate under the effect of a concentrated heat flux

The results of an analytical solution to the problem of heat distribution inside a massive solid sample with concentrated heat supply to this sample surface are presented. Analytical expressions for the non-stationary temperature distribution inside the body are obtained using the integral cosine Fourier transform and the Hankel transform. Examples of solution application for estimating the characteristic times of reaching the Chernov points Ac₁ and Ac₃ in model hypoeutectoid steels under the effect of laser radiation are presented. The application of this solution to calculating the cooling dynamics of ceramic Al₂O₃ and SiO₂ samples, affected by the air and water jets, is demonstrated.

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来源期刊

Thermophysics and Aeromechanics THERMODYNAMICS-MECHANICS

CiteScore

0.90

自引率

40.00%

发文量

审稿时长

>12 weeks

期刊介绍： The journal Thermophysics and Aeromechanics publishes original reports, reviews, and discussions on the following topics: hydrogasdynamics, heat and mass transfer, turbulence, means and methods of aero- and thermophysical experiment, physics of low-temperature plasma, and physical and technical problems of energetics. These topics are the prior fields of investigation at the Institute of Thermophysics and the Institute of Theoretical and Applied Mechanics of the Siberian Branch of the Russian Academy of Sciences (SB RAS), which are the founders of the journal along with SB RAS. This publication promotes an exchange of information between the researchers of Russia and the international scientific community.