Volume 27 Issue 4
Apr.  2012
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Article Navigation >  Journal of Aerospace Power  > 2012  >  27(4): 742-748
HAN Ya-hui, YANG Chun-xin, XU Xiao-dong. Multi-node statics model and aerodynamic characteristics of cross parachute clusters[J]. Journal of Aerospace Power, 2012, 27(4): 742-748.
Citation: HAN Ya-hui, YANG Chun-xin, XU Xiao-dong. Multi-node statics model and aerodynamic characteristics of cross parachute clusters[J]. Journal of Aerospace Power, 2012, 27(4): 742-748.
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Multi-node statics model and aerodynamic characteristics of cross parachute clusters

  • 1.

    School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • 2.

    Mechanical Engineering Department, Army Aviation Institute, Beijing 100123

  • 3.

    First Research Room, Institute of Aerial Equipment, Beijing 100039, China

  • Received Date: 2011-10-28
  • Rev Recd Date: 2012-02-28
  • Publish Date: 2012-04-28
    Abstract
  • To calculate clusters’ aerodynamic characteristics for a certain type of disaster relief airdrop system,multi-node statics model of cross parachute system was developed to calculate the aerodynamic shape of canopy.Different cross parachute models were numerically simulated with different canopy arm ratios and suspension line ratios,and the numerical results were compared with test results in literature.According to this model,and aerodynamic shape was obtained for cross parachute clusters,and aerodynamic characteristics were simulated.The results show that:the calculated results and wind tunnel test results in literature are in good agreement,and the multi-node statics model is accurate and feasible.As canopy arm ratio and suspension line ratio of cross parachute increase,the axial force increases;as the angle of attack increases,the axial force firstly decreases and then increases,whereas the normal force increases.This model can be used for calculating aerodynamic shape of parachute clusters,which is also useful for parachute system design.

     

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