Numerical Study on Coupled Heat Transfer and Structural Deformation of Compound Nozzle with Copper Infiltrated Tungsten-Lined Throat

Ziqing Gao, Zhijun Wei*, Ling Zhou, Chujiu Huang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

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.

Original languageEnglish
Title of host publicationMechanical and Aerospace Engineering - Proceedings of the 15th Asia Conference on Mechanical and Aerospace Engineering, ACMAE 2024
EditorsBen Guan
PublisherIOS Press BV
Pages463-469
Number of pages7
ISBN (Electronic)9781643685892
DOIs
Publication statusPublished - 2025
Externally publishedYes
Event15th Asia Conference on Mechanical and Aerospace Engineering, ACMAE 2024 - Harbin, China
Duration: 27 Dec 202429 Dec 2024

Publication series

NameAdvances in Transdisciplinary Engineering
Volume68
ISSN (Print)2352-751X
ISSN (Electronic)2352-7528

Conference

Conference15th Asia Conference on Mechanical and Aerospace Engineering, ACMAE 2024
Country/TerritoryChina
CityHarbin
Period27/12/2429/12/24

Keywords

  • compound nozzle
  • Coupled heat transfer
  • optimal design
  • structural deformation

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