CHENG Han, YU Li, YANG Xuesong, WANG Lu. Numerical simulation of parachute opening process in finite mass situation[J]. ACTA AERODYNAMICA SINICA, 2014, 32(2): 258-263. DOI: 10.7638/kqdlxxb-2012.0101
Citation: CHENG Han, YU Li, YANG Xuesong, WANG Lu. Numerical simulation of parachute opening process in finite mass situation[J]. ACTA AERODYNAMICA SINICA, 2014, 32(2): 258-263. DOI: 10.7638/kqdlxxb-2012.0101

Numerical simulation of parachute opening process in finite mass situation

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  • Received Date: June 13, 2012
  • Revised Date: November 13, 2012
  • Available Online: January 07, 2021
  • In order to simulate the three-dimensional dynamic opening process of parachute system in a finite mass situation, a common flat circular parachute, the C9 parachute, is studied in this work. The working process (from inflating to dropping) of the C9 parachute is studied by using LS-DYNA based on the finite element theory. The calculation results are also verified by dropping test. The structure change and flow field change are obtained. Especially, the velocity and the acceleration of payload, which can reflect the deceleration characteristics of a parachute system, are also obtained by calculation in this work. Then the interrelation between dangerous section, overload and canopy shape is analyzed. The results show that the ALE method, a fluid-structure interaction method, can predict the deceleration characteristics and dangerous section during parachute opening. The results can reflect the general working laws of parachute in practice, and the method in this work can help determine the design or optimization of aerodynamic deceleration systems.
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