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Journal of Projectiles, Rockets, Missiles and Guidance >

2021 , Vol. 41 >Issue 3: 34 - 38

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2021.03.008

Research on Propellant Sloshing of Liquid Rocket Cold Launch System

  • WEI Dongdong 1 ,
  • JIANG Yi 1 ,
  • ZHAO Liangyu 1 ,
  • LI Yulong 2
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  • 1 School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China
  • 2 No.96901 Unit, Beijing 100094, China

Received date: 2020-06-18

  Online published: 2025-02-20

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Abstract

In order to study the impact of liquid propellant sloshing on rocket launch accuracy and launch safety, the fluid-structure coupling technology is used to model and simulate the liquid rocket cold ejection system. Through the data interaction between the cold launch sub-model and the liquid propellant sub-model, the disturbance of the propellant sloshing to the rocket launching process is studied by comparing the launch system without considering the propellant sloshing with the fluid-structure coupling launch system which considers the propellant sloshing. The results show that the sloshing of the propellant can cause a greater disturbance force and moment of the rocket, prolong the off-orbit time, and increase the off-orbit angular velocity.

Key words： fluid-structure coupling; moving-particle semi-implicit method; liquid sloshing

Cite this article

WEI Dongdong , JIANG Yi , ZHAO Liangyu , LI Yulong . Research on Propellant Sloshing of Liquid Rocket Cold Launch System[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2021 , 41(3) : 34 -38 . DOI: 10.15892/j.cnki.djzdxb.2021.03.008

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