火箭推进2025，Vol.51Issue(6)：43-52,10.DOI:10.3969/j.issn.1672-9374.2025.06.005
液体火箭发动机推力室传热过程的数字孪生实践
Digital twin practice for heat transfer process analysis in liquid rocket engine thrust chamber
胡锦华 1雷博娟 1杨建文 1胡海峰 1任孝文 1周立新1
作者信息
- 1. 西安航天动力研究所航天液体动力全国重点实验室,陕西西安 710100
- 折叠
摘要
Abstract
Modelling,prediction,and integration of the heat transfer processes in rocket engines are important for digitalization and intelligentization.Aiming at the problems of low heat transfer prediction efficiency and difficulty of dynamic and real-time prediction in thrust chamber heat transfer analysis,this paper focused on the thrust chamber in liquid oxygen/kerosene engines and established a sample database based on conventional heat transfer analysis methods.A digital twin prediction model for heat transfer was subsequently developed through model training,enabling dynamic and real-time prediction of thermal transfer processes in thrust chambers.This approach provides a technical foundation for virtual thermal testing in engine systems.The results show that the response time of the heat transfer digital twin model is approximately on the order of seconds,and the prediction accuracy of the digital twin depends on the quality of the sample database.The model exhibits less than 1％error compared to the sample database and demonstrates less than 4.8％deviation from experimental data.关键词
数字孪生/推力室/传热过程/液体火箭发动机Key words
digital twin/thrust chamber/heat-transfer/liquid rocket engine分类
航空航天引用本文复制引用
胡锦华,雷博娟,杨建文,胡海峰,任孝文,周立新..液体火箭发动机推力室传热过程的数字孪生实践[J].火箭推进,2025,51(6):43-52,10.
