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Journal of Projectiles, Rockets, Missiles and Guidance >

2020 , Vol. 40 >Issue 3: 119 - 122

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2020.03.027

Numerical Simulation of Airborne External Weapon Separation Based on FLUENT Software Platform

  • GUAN Zaisheng ,
  • RUAN Wenhua ,
  • TONG Yun ,
  • HAO Lianying ,
  • MENG Wanli ,
  • SHU Chuanliang
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  • Shanghai Electro-mechanical Engineering Institute, Shanghai 201109, China

Received date: 2019-04-11

  Online published: 2025-02-12

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Abstract

In order to solve the problem of numerical simulation of separation of airborne external mounted weapons, the aerodynamic force of external mounted weapons is applied with user-defined function of FLUENT software, and the position and attitude of the weapon at the next moment are obtained by inputting the aerodynamic force into the embedded trajectory and stability control program. Then the dynamic mesh and solver of “spring model + local mesh reconstruction” are used to obtain the newer ones. Aerodynamic force is used to simulate the separation process in turn. This method solves the problem of poor convergence of simulation results of relative motion and drastic change of flow field of multi-body moving grids. The results show that this method can accurately simulate the separation process of airborne external stores, and provide a reference for the safe separation design of external stores.

Key words： computational fluid dynamics; aerodynamic interfere; dynamics mesh; turbulence model

Cite this article

GUAN Zaisheng , RUAN Wenhua , TONG Yun , HAO Lianying , MENG Wanli , SHU Chuanliang . Numerical Simulation of Airborne External Weapon Separation Based on FLUENT Software Platform[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2020 , 40(3) : 119 -122 . DOI: 10.15892/j.cnki.djzdxb.2020.03.027

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