Study on the Impacts of Solid Rocket Plume Flow Field on Payload Fairings

LIU Yi; QU Pu; LI Qiang; JIANG Ruizhou

doi:10.15892/j.cnki.djzdxb.2024.02.014

Journal of Projectiles, Rockets, Missiles and Guidance >

2024 , Vol. 44 >Issue 2: 90 - 96

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2024.02.014

Study on the Impacts of Solid Rocket Plume Flow Field on Payload Fairings

LIU Yi ,
QU Pu ,
LI Qiang ,
JIANG Ruizhou

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School of Mechanical and Electrical Engineering, North University of China, Taiyuan 030051, Shanxi, China

Received date: 2023-12-25

Online published: 2024-12-28

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Abstract

The impact of the rocket missile’s gas jet on the carrying platform is a crucial consideration for surface protection and structural design. In order to investigate the impact effects of high-speed jets on the fuselage at different angles, a three-dimensional simulation physical model of the solid rocket launch process is established using the finite volume method and the SST k-ω turbulence model. Numerical simulation is conducted for the gas jet ejected from the solid rocket engine at both 70° and 56° angles, obtaining the characteristics of the jet at different time points and analyzing the impact of the jet on the surface of the fuselage at the two angles. The results indicate that, after the jet exits the nozzle, it expands in the air, forming a curved shock wave. Upon reaching the surface of the fuselage, it compresses, creating a high-temperature and high-pressure zone. Subsequently, the temperature and pressure gradually decrease along the surface of the fuselage. The trends in temperature and pressure changes on the fuselage surface are consistent, with the fuselage surface temperature being lower at a 56° angle, resulting in a greater impact effect.

Key words： wake flow field; gas jet; numerical simulation; impact effect

Cite this article

LIU Yi , QU Pu , LI Qiang , JIANG Ruizhou . Study on the Impacts of Solid Rocket Plume Flow Field on Payload Fairings[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2024 , 44(2) : 90 -96 . DOI: 10.15892/j.cnki.djzdxb.2024.02.014

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