TY - GEN
T1 - Numerical Study on Coupled Heat Transfer and Structural Deformation of Compound Nozzle with Copper Infiltrated Tungsten-Lined Throat
AU - Gao, Ziqing
AU - Wei, Zhijun
AU - Zhou, Ling
AU - Huang, Chujiu
N1 - Publisher Copyright:
© 2025 The Authors.
PY - 2025
Y1 - 2025
N2 - Compound nozzles are widely used in the field of solid rocket engine (SRM). However, problems such as nozzle burn-out often occur in engineering, which is due to the different thermal expansion between components of different materials, and the combination interface is easy to fail. Based on this, the model of nozzle heat transfer and structural deformation is established and verified. Then, the heat transfer law and material deformation characteristics of the compound nozzle with copper infiltrated tungsten-lined throat are studied. The results show that the heat transfer of nozzle throat is the most intense, and there is obvious temperature jump and stress concentration at the junction of different components in addition to the heavy load on the throat lining, which may even cause the material to exceed the yield limit. Therefore, the combination and interaction between different components should be emphasized in the design of compound nozzle. A certain gap can be designed at the interface extrusion, which can effectively reduce the stress concentration value and optimize the uniformity of distribution.
AB - Compound nozzles are widely used in the field of solid rocket engine (SRM). However, problems such as nozzle burn-out often occur in engineering, which is due to the different thermal expansion between components of different materials, and the combination interface is easy to fail. Based on this, the model of nozzle heat transfer and structural deformation is established and verified. Then, the heat transfer law and material deformation characteristics of the compound nozzle with copper infiltrated tungsten-lined throat are studied. The results show that the heat transfer of nozzle throat is the most intense, and there is obvious temperature jump and stress concentration at the junction of different components in addition to the heavy load on the throat lining, which may even cause the material to exceed the yield limit. Therefore, the combination and interaction between different components should be emphasized in the design of compound nozzle. A certain gap can be designed at the interface extrusion, which can effectively reduce the stress concentration value and optimize the uniformity of distribution.
KW - compound nozzle
KW - Coupled heat transfer
KW - optimal design
KW - structural deformation
UR - http://www.scopus.com/inward/record.url?scp=105003739161&partnerID=8YFLogxK
U2 - 10.3233/ATDE250074
DO - 10.3233/ATDE250074
M3 - Conference contribution
AN - SCOPUS:105003739161
T3 - Advances in Transdisciplinary Engineering
SP - 463
EP - 469
BT - Mechanical and Aerospace Engineering - Proceedings of the 15th Asia Conference on Mechanical and Aerospace Engineering, ACMAE 2024
A2 - Guan, Ben
PB - IOS Press BV
T2 - 15th Asia Conference on Mechanical and Aerospace Engineering, ACMAE 2024
Y2 - 27 December 2024 through 29 December 2024
ER -