Wanxiang Yao , Xudong Zhang , Tianqi Shao , Yixuan Zhang , Puyan Xu , Yifan Li , Man Fan , Feng Shi , Weixue Cao , Bin Yang
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引用次数: 0
Abstract
The thermal protection of high temperature as well as large heat flux surface was a key technological challenge in the development of thermal protection science. In this paper, a novel small-channel thermal protection component for curved surface cooling was proposed with reference to tree branching laws. The internal flow and heat transfer characteristics were investigated using numerical simulation techniques. Firstly, a variety of operating conditions were designed to explore the correlation between different material properties and thermal protection effect. Secondly, the heat flow state inside the thermal protection component was analyzed to obtain the optimal operating conditions. Finally, the results showed that the critical Reynolds number for flow within the thermal protection component was 4k and the coefficient of local resistance was 1.67. The thermal insulation coefficient and thermal resistance of the component were 81.12 % and 2.76E-4 at different operating conditions, respectively. The pressure difference between the different stages of flow channels were kept at a steady value during the boiling phase transition heat, respectively. This research was important for the development of electronic communication microelectronics, aerospace and solar energy.
期刊介绍：
The International Journal of Thermal Sciences is a journal devoted to the publication of fundamental studies on the physics of transfer processes in general, with an emphasis on thermal aspects and also applied research on various processes, energy systems and the environment. Articles are published in English and French, and are subject to peer review.
The fundamental subjects considered within the scope of the journal are:
* Heat and relevant mass transfer at all scales (nano, micro and macro) and in all types of material (heterogeneous, composites, biological,...) and fluid flow
* Forced, natural or mixed convection in reactive or non-reactive media
* Single or multi–phase fluid flow with or without phase change
* Near–and far–field radiative heat transfer
* Combined modes of heat transfer in complex systems (for example, plasmas, biological, geological,...)
* Multiscale modelling
The applied research topics include:
* Heat exchangers, heat pipes, cooling processes
* Transport phenomena taking place in industrial processes (chemical, food and agricultural, metallurgical, space and aeronautical, automobile industries)
* Nano–and micro–technology for energy, space, biosystems and devices
* Heat transport analysis in advanced systems
* Impact of energy–related processes on environment, and emerging energy systems
The study of thermophysical properties of materials and fluids, thermal measurement techniques, inverse methods, and the developments of experimental methods are within the scope of the International Journal of Thermal Sciences which also covers the modelling, and numerical methods applied to thermal transfer.
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