Journal of the Korea Institute of Military Science and Technology (한국군사과학기술학회지)

The Korea Institute of Military Science and Technology (한국군사과학기술학회)
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Numerical Analysis of Unsteady Thermo-Fluid Behavior for Launched Body using Chimera Mesh

키메라 격자를 이용한 발사체의 비정상 열유동해석

  • Received : 2010.06.11
  • Accepted : 2010.10.01
  • Published : 2010.12.05
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Abstract

This paper presents a numerical evaluation of the launch dynamics and thermo-fluid phenomena for gas generator launch eject system. The existing gas dynamic model for launching eject body used ideal gas and adiabatic assumption with empirical energy loss model. In present study, a turbulent Navier-Stokes solver with CHIMERA mesh is employed to predict the detail unsteady thermo-fluid dynamics for the launched body. The calculation results show that proper grid number is necessary for good agreement with experimental data. The important effects for accurate prediction are a gap distance and thermal boundary condition on the wall. The computational results show good agreement with experiment data.

Keywords

References

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