弹道学报2012，Vol.24Issue(2)：88-91,105,5.
复合结构喷管温度场及应力场数值模拟
Numerical Calculation of Temperature and Stress Field of Complex Nozzle
摘要
Abstract
To ensure the structure safety of nozzle while working in high-temperature gas flow, it is necessary to estimate the temperature distribution and thermal-structure accurately. Aiming at this problem, the finite element model of complex nozzle was established. The CFD and the thermal and structural analysis part of ANSYS were used to simulate the temperature field and stress field,and the coupled calculation method of thermal-structure was achieved. The results show that the heat-transfer coefficient gets maximum value at throat. From downstream of convergent section to throat, the peak value of temperature appears, and the temperature changes continuously in the same material. The temperature and stress show obvious change of gradient at the interface of different materials, and the stress concentration forms at the interface. The conclusion offers technical support for structural design of nozzle and safety assessment.关键词
复合喷管/温度场/应力场/耦合计算/有限元Key words
complex nozzle/temperature field/stress field/coupled calculation~ finiteelement method分类
航空航天引用本文复制引用
王天波,薛谈顺,周长省,陈雄,郑健..复合结构喷管温度场及应力场数值模拟[J].弹道学报,2012,24(2):88-91,105,5.基金项目
南京理工大学自主科研项目 （）
江苏省高校研究生科研创新项目 （）
