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马静雯, 王诗平, 杨英狄, 郑智颖, 熊骋望. 考虑热效应的空化流动研究进展[J]. 力学学报.
引用本文: 马静雯, 王诗平, 杨英狄, 郑智颖, 熊骋望. 考虑热效应的空化流动研究进展[J]. 力学学报.
Research advances on cavitation flows considering thermal effects[J]. Chinese Journal of Theoretical and Applied Mechanics.
Citation: Research advances on cavitation flows considering thermal effects[J]. Chinese Journal of Theoretical and Applied Mechanics.

考虑热效应的空化流动研究进展

Research advances on cavitation flows considering thermal effects

  • 摘要: 高速航行体的多相水动力学过程,如水下发射与超空泡航行等,在通入高温气体形成空泡的过程中需考虑热效应对空泡动力学的影响。且火箭低温液态燃料供应、核反应堆高温管道输送等工程问题中发生的空化现象也具有显著的热效应。在以上流动中,热效应不仅仅会改变流体的物理性质,影响相间质量输运和热传递,还引发了复杂的动力学和热力学变化,因此考虑热效应的空化机理、能量的传递和输运规律以及流动不稳定性机理是亟需解决的关键科学问题。本文基于不同影响因素将考虑热效应的空化流动分为高温壁面空化、高温通气空泡、高温水空化以及低温热敏流体空化四类,并分别综述了四类情况下空泡演化特性和影响规律。此外,本文总结归纳了数值模拟考虑热效应的空化流动常用的空化模型和湍流模型,以及在实验研究中采用的各种多物理场测量技术,但相关数值仿真和实验技术还有待进一步发展完善。未来还需深入研究热效应对空化/空泡流动生成和稳定性的影响机制,全面了解和掌握热效应空化流动的特点和行为,为相关领域的工程设计和优化提供更加准确的数据支撑、分析工具和理论基础。

     

    Abstract: The high-speed multiphase hydrodynamic processes of high-speed vehicles, such as underwater launching and supercavitation navigation, require consideration of thermal effects on cavitation dynamics during the formation of cavities by the injection of high-temperature gas. Additionally, cavitation phenomena occurring in engineering problems, such as rocket cryogenic liquid fuel supply and high-temperature pipeline transportation in nuclear reactors, also exhibit significant thermal effects. In these flow scenarios, thermal effects not only alter the physical properties of the fluid, affecting interphase mass transport and heat transfer but also trigger complex dynamics and thermodynamic changes. Therefore, understanding the mechanisms of cavitation considering thermal effects, the laws of energy transfer and transport, and the mechanisms of flow instability are critical scientific issues that need to be addressed. This paper categorizes cavitation/cavity flows considering thermal effects into four types based on different influencing factors: high-temperature wall cavitation, high-temperature ventilated cavitation, high-temperature water cavitation, and low-temperature thermally sensitive fluid cavitation. This paper comprehensively reviews the evolution characteristics and influencing laws of four types of cavities. Additionally, the paper summarizes the cavitation models and turbulence models commonly used in numerical simulations considering thermal effects, as well as various multiphysics field measurement techniques employed in experimental studies. However, the related numerical simulation and experimental techniques still need further development and improvement. Future research should delve deeper into the mechanisms by which thermal effects influence the generation and stability of cavitation/cavity flows, to fully understand and master the characteristics and behaviors of cavitation flows with thermal effect, providing more accurate data support, analysis tools, and theoretical foundations for engineering design and optimization in related fields.

     

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