Volume 23 Issue 10
Oct.  2008
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Article Navigation >  Journal of Aerospace Power  > 2008  >  23(10): 1859-1867
SONG Bao-yin, ZHANG Zhong-gang, MOU Jie, YAO Qiu-ping. Numerical simulation of the flowfield around the seat/occupant system[J]. Journal of Aerospace Power, 2008, 23(10): 1859-1867.
Citation: SONG Bao-yin, ZHANG Zhong-gang, MOU Jie, YAO Qiu-ping. Numerical simulation of the flowfield around the seat/occupant system[J]. Journal of Aerospace Power, 2008, 23(10): 1859-1867.
shu

Numerical simulation of the flowfield around the seat/occupant system

  • 1.

    College of Aerospace Engineering, Nanjing University of Aeronautics and Astranautics, Nanjing 210016, China

  • 2.

    Marine Engineering Institute, Jimei University, Xiamen 361021, China

  • Received Date: 2007-09-25
  • Rev Recd Date: 2008-03-14
  • Publish Date: 2008-10-28
    Abstract
  • The seat/occupant system was modeled geometrically and mathematically in this paper.The modified geometry model was closer to the real body.A numerical investigation using CFD technique was conducted.A three dimensional Reynolds-averaged Navier-Stokes code with standard turbulence model was used to describe the turbulent compressible flow field around the seat and occupant.The CFD code used was FLUENT,which is based on the control volume finite-difference approach.The results were presented in the form of force and moment coefficients,and agree well with the experimental data obtained from wind tunnel test.The dynamic characteristics of the seat / occupant system for Mach number of 0.2,0.6,and 1.2,at angles of attack from 0 to 60 degrees and the angles of sideslip from 0 to 30 degrees were investigated respectively.The results reveal that high Mach number,zero angle of the attack and large sideslip angle are the most dangerous state for the escaping pilot.

     

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