| Topology optimization of regenerative cooling structures under high Reynolds number flow with variable thermo-physical properties | |
Li XL(李新磊)1,2; Wu K(吴坤)1; Zhao, Linying3,4; Fan XJ(范学军)1,2,4
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| Corresponding Author | Wu, Kun([email protected]) |
| Source Publication | APPLIED THERMAL ENGINEERING
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| 2025 | |
| Volume | 258Pages:16 |
| ISSN | 1359-4311 |
| Abstract | In the design of thermal protection system for hypersonic vehicles, the efficient convective heat transfer within regenerative cooling channels plays a critical role in maintaining their thermal performance. This study focuses on the topology optimization (TO) of the cooling channels that operate at high Reynolds number and have variable thermo-physical properties. A novel approach is introduced to enhance the density-based method by incorporating an effective artificial force correction and tabulating the temperature-dependent thermal properties. Several topology-optimized cooling layouts were generated to minimize the maximum temperature within the design domain while considering different power dissipation constraints. This confirms the validity of the proposed lumped correction term in momentum equation accounting both viscous and convective body forces. Regarding the thermal performance of the optimized layouts, the staggered arrangement of cellular ribs in the TO channel was found to induce multiple flow separations and promote turbulent mixing, thereby improving heat transfer efficiency and mitigating the thermal acceleration effect. Conjugate heat transfer calculations revealed that the optimal topology-optimized channel achieved a 24.3% improvement in overall thermal performance while being 15.3% lighter than the straight channel design. Furthermore, the optimal topology optimized layout consistently outperformed the straight channel design by 6.6% to 24.3% in terms of the overall thermal performance across a wide range of heat flux distribution and mass flow rate conditions. This investigation highlights the effectiveness of topology optimization in designing regenerative cooling structures featuring high Reynolds number hydrocarbon thermal fluid flow. |
| Keyword | Regenerative cooling Topology optimization High Reynolds number Variable thermo-physical properties Heat transfer performance |
| DOI | 10.1016/j.applthermaleng.2024.124602 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001339533200001 |
| WOS Keyword | HEAT-TRANSFER ; DESIGN ; FLUIDS |
| WOS Research Area | Thermodynamics ; Energy & Fuels ; Engineering ; Mechanics |
| WOS Subject | Thermodynamics ; Energy & Fuels ; Engineering, Mechanical ; Mechanics |
| Classification | 一类 |
| Ranking | 1 |
| Contributor | Wu, Kun |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/97083 |
| Collection | 高温气体动力学国家重点实验室 |
| Affiliation | 1.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China; 3.Northwestern Polytech Univ, State IJR Ctr Aerosp Design & Addit Mfg, Xian 710072, Shaanxi, Peoples R China; 4.Hefei Zhongke Chongming Technol Co, Hefei 230601, Peoples R China |
| Recommended Citation GB/T 7714 | Li XL,Wu K,Zhao, Linying,et al. Topology optimization of regenerative cooling structures under high Reynolds number flow with variable thermo-physical properties[J]. APPLIED THERMAL ENGINEERING,2025,258:16.Rp_Au:Wu, Kun |
| APA | 李新磊,吴坤,Zhao, Linying,&范学军.(2025).Topology optimization of regenerative cooling structures under high Reynolds number flow with variable thermo-physical properties.APPLIED THERMAL ENGINEERING,258,16. |
| MLA | 李新磊,et al."Topology optimization of regenerative cooling structures under high Reynolds number flow with variable thermo-physical properties".APPLIED THERMAL ENGINEERING 258(2025):16. |
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