再生冷却系统流/固耦合传热计算方法研究进展
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1.国防科技大学 高超声速技术实验室/空天飞行空气动力科学与技术全国重点实验室;2.空天飞行空气动力科学与技术全国重点实验室

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V43

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Advance on calculation methods of fluid-solid coupled heat transfer with regenerative cooling system
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    摘要:

    流/固耦合传热问题是再生冷却热防护系统精细化设计需要解决的关键难点问题。本文从流固传热的角度介绍了燃气/固壁传热和冷却剂/冷却通道传热计算方法,以及影响冷却剂固壁传热的一些特殊因素,包括冷却剂二次流动、超临界影响以及裂解结焦特性等。随后介绍了三类再生冷却系统流/固耦合传热计算方法,包括整场求解、基于准则关系式的分区求解与基于连续性边界的分区求解计算方法。最后介绍了流/固耦合非稳态传热计算方法研究现状并初步探索了非稳态计算发展的方向。

    Abstract:

    Fluid-solid coupled heat transfer is regarded as a key challenge in the refined design of regenerative cooling thermal protection systems. From the perspective of fluid-solid heat transfer, the calculation methods for heat transfer between hot gas and the solid chamber wall were introduced, the heat transfer calculation methods of coolants within cooling channels were presented, and the special factors affecting heat transfer between the coolant and the wall were analyzed, including secondary flow, supercritical effects, and cracking characteristics, etc. For regenerative cooling systems, three fluid-solid coupled heat transfer calculation methods were proposed: the whole-domain solution method, the partition solution method based on correlation criteria, and the partition solution method based on continuity boundary conditions. In the field of unsteady heat transfer, the research progress of fluid-solid coupled unsteady calculation methods was reviewed, and the possible future development directions of this field were preliminarily discussed.

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  • 收稿日期:2024-12-20
  • 最后修改日期:2025-07-07
  • 录用日期:2025-06-03
  • 在线发布日期: 2025-07-08
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