Synergistic heat transfer modeling of actively cooled lattice structures under high-temperature boundary conditions
文献类型：期刊论文
| 作者 | Chen XY(陈星宇); Yang ZM(杨正茂)2 |
| 刊名 | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
 |
| 出版日期 | 2026-02-01 |
| 卷号 | 255页码:18 |
| 关键词 | Analytical model Conjugate heat transfer Lattice structure Active cooling structure |
| ISSN号 | 0017-9310 |
| DOI | 10.1016/j.ijheatmasstransfer.2025.127674 |
| 通讯作者 | Yang, Zhengmao(zmyang@imech.ac.cn) |
| 英文摘要 | This paper presents an efficient multimodal thermal performance analysis model for predicting the thermal behavior of actively cooled three-dimensional lattice sandwich cylindrical structures in extreme thermal environments, such as those encountered in air and space vehicles. Traditional computational fluid dynamics (CFD) methods are accurate but computationally expensive in predicting conjugate heat transfer. Meanwhile, existing equivalent models are limited by their incomplete heat transfer mechanisms or their applicability only under low-temperature conditions. In contrast, this study develops a coupled prediction model that integrates solid heat conduction, forced convection of the radiation-transparent cooling medium, and interfacial radiation. The model is based on the energy conservation equation and a Newtonian iterative format, enabling the quantification of radiative heat transfer's contribution to overall heat dissipation efficiency in high-temperature environments. The model's predictions of total heat dissipation and the average temperature of the outer wall across a wide temperature range, using air as the cooling medium, are validated against high-fidelity CFD simulations and show excellent agreement with numerical calculations. Furthermore, the computational efficiency is improved by more than 400 times. Additional analysis reveals that, in high-temperature conditions, heat flow competition between the outer wall and lattice rods can cause a reversal in the temperature gradient, underscoring the significant role of radiation-convection dynamic coupling. This study provides a theoretical framework for the optimal design of dynamic thermal management systems in active composite thermal protection, expanding the applicability of conjugate heat transfer mechanisms in extreme thermal environments. |
| 分类号 | 一类 |
| WOS关键词 | THERMAL PROTECTION ; SANDWICH ; DESIGN |
| 资助项目 | National Natural Science Foundation of China (NSFC)[52575190] ; National Natural Science Foundation of China (NSFC)[U24B2028] ; National Natural Science Foundation of China (NSFC)[52105165] |
| WOS研究方向 | Thermodynamics ; Engineering ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:001566295900003 |
| 资助机构 | National Natural Science Foundation of China (NSFC) |
| 其他责任者 | 杨正茂 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/103587]  |
| 专题 | 宽域飞行工程科学与应用中心 |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Chen XY,Yang ZM. Synergistic heat transfer modeling of actively cooled lattice structures under high-temperature boundary conditions[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,2026,255:18. |
| APA | 陈星宇,&杨正茂.(2026).Synergistic heat transfer modeling of actively cooled lattice structures under high-temperature boundary conditions.INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,255,18. |
| MLA | 陈星宇,et al."Synergistic heat transfer modeling of actively cooled lattice structures under high-temperature boundary conditions".INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 255(2026):18. |
入库方式： OAI收割
来源：力学研究所
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