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Journal of Projectiles, Rockets, Missiles and Guidance >

2016 , Vol. 36 >Issue 5: 97 - 100

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2016.05.025

BALLISIIC AND AIRDYNAMICS

Numerical Investigations on Aerodynamic Characteristics of A Generic Store in Supersonic Cavity Flow

  • WANG Xiaopeng ,
  • LI Xiang ,
  • ZUO Yingtao ,
  • LIU Xiaobo
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  • 1 Shanghai Electro-mechanical Engineering Institut, Shanghai 201109, China
    2 School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China
    3 Key Laboratory of National Defense Science and Technology of Airfoil, the Cascade Aerodynamic, Northwestern Polytechnical University, Xi'an 710072, China

Received date: 2015-09-05

  Online published: 2025-05-30

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Abstract

Effects of Mach number, length-to-depth ratio of cavity and separation distance from cavity on longitudinal aerodynamic characteristics of a generic store in supersonic cavity flow were investigated by solving N-S equations. Implicit LU-SGS, Roe's scheme and S-A turbulent model were used in the numerical simulations. The simulated results show that Mach number and length-to-depth ratio of cavity have small effects on normal force and axial force of the store separated through the cavity flow field. The cavity with low length-to-depth ratio has little effect on pitching moment of the store, whereas the cavities with moderate and high length-to-depth ratio have considerable effects on the pitching moments. The higher length-to-depth cavity produces greater pitching moments to force the nose of store toward the cavity as the store is in nearby region of the cavity. The peak pitching moment on the store increases as Mach number increases.

Key words： supersonic flow; cavity; generic store; aerodynamic characteristics; numerical simulation

Cite this article

WANG Xiaopeng , LI Xiang , ZUO Yingtao , LIU Xiaobo . Numerical Investigations on Aerodynamic Characteristics of A Generic Store in Supersonic Cavity Flow[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2016 , 36(5) : 97 -100 . DOI: 10.15892/j.cnki.djzdxb.2016.05.025

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