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本文详细探讨了含流道的微桁架夹层面板内部复杂的传热机制,并基于简化假设,提出了一种评估该结构隔热性能的解析模型,建立了该类新型一体化主动冷却热防护结构的隔热性能快速评估方法。通过与Fluent软件详细的数值模拟结果对比,验证了评估方法的有效性。该研究为新结构的实际应用提供了理论基础。
In this paper, the complicated heat transfer mechanism inside the micro-truss sandwich panel with flow channel is discussed in detail. Based on the simplified assumption, an analytical model to evaluate the thermal insulation performance of the micro-truss sandwich panel is proposed and the new integrated active cooling thermal protection structure Fast assessment of insulation properties. Compared with the detailed numerical simulation results of Fluent software, the validity of the assessment method is verified. The research provides a theoretical basis for the practical application of the new structure.