### 基于TLBM-FVM耦合的飞行器舱内热环境跨尺度预测方法

1. 1. 中国空气动力研究与发展中心 空气动力学国家重点实验室, 绵阳 621000;
2. 西安交通大学 航天航空学院 机械结构强度与振动国家重点实验室, 西安 710049
• 收稿日期:2021-03-30 修回日期:2021-04-23 发布日期:2021-05-10
• 通讯作者: 杜雁霞 E-mail:yanxiadu@163.com
• 基金资助:
国家数值风洞工程；国家重点研发计划（2019YFA0405202）

### TLBM-FVM cross-scale method for thermal environment prediction of aircraft cabin

XIAO Guangming1, ZHANG Chao2, GUI Yewei1, DU Yanxia1, LIU Lei1, WEI Dong1

1. 1. State Key Laboratory of Aerodynamics, China Aerodynamics Research and Development Center, Mianyang 621000, China;
2. State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace Engineering, Xi'an Jiaotong University, Xi'an 710049, China
• Received:2021-03-30 Revised:2021-04-23 Published:2021-05-10
• Supported by:
National Numerical Windtunnel Project; National Key Research and Development Program of China (2019YFA-0405202)

Abstract: Prediction of the thermal environment in the cabin is essential for aircraft thermal control and heat protection design and optimization, and is also important to system redundancy reduction and thermal safety. Due to the influence of multi-scale effects, it is difficult to improve the computational efficiency and accuracy of existing prediction methods. With the support of the National Numerical Windtunnel (NNW) Project, the space-time coupling model for multi-zone cooperative advancement and the adaptive resolution recognition algorithm for the fluid/solid interface are improved. Then, a hybrid heat transfer prediction approach is established based on the Thermal Lattice Boltzmann Method (TLBM) and the Finite Volume Method (FVM). To verify the accuracy and efficiency of the TLBM-FVM combined method, a comprehensive thermal analysis of a typical aircraft instrument cabin is carried out. The research shows that the proposed method can realize the local refinement and overall large-scale collaborative simulation of the thermal environment in the aircraft cabin, and can be used to grasp the influence of different parameters on heat and mass transfer process, thus providing important technical support for integrated design of thermal protection and management.