Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
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A STUDY ON AERODYNAMIC ANALYSIS OF A SUB-MUNITION WITH DRAG RIBBON

항력리본이 장착된 자탄의 공력 해석 연구

  • Received : 2011.09.26
  • Accepted : 2011.11.08
  • Published : 2011.12.31
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Abstract

The initial unfolding motion simulation of a sub-munition with drag ribbon for precision guidance and reliable operation has been investigated by analyzing its unsteady aerodynamic load and fluid structure interaction. The effects of change in the ribbon configuration and flow angle are numerically studied using a commercial software "XFLOW" based on Lattice-Boltzmann Method. It is shown that the motion is affect adversely by the separation bubble formed posterior part of the fuselage. The rolling moment for arming of the sub-munition is increased with angle of attack and rotational movement.

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