Volume 28 Issue 9
Sep.  2013
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ZHANG Chun, YANG Qian, YUAN Meng, CAO Yi-hua. Numerical simulation of flow field and handling aerodynamic characteristics of ram-air parachute[J]. Journal of Aerospace Power, 2013, 28(9): 2037-2043.
Citation: ZHANG Chun, YANG Qian, YUAN Meng, CAO Yi-hua. Numerical simulation of flow field and handling aerodynamic characteristics of ram-air parachute[J]. Journal of Aerospace Power, 2013, 28(9): 2037-2043.

Numerical simulation of flow field and handling aerodynamic characteristics of ram-air parachute

  • Received Date: 2012-08-31
  • Publish Date: 2013-09-28
  • The aerodynamic characteristics of ram-air parachute were numerically simulated to analyze flow field mechanism and handling aerodynamic characteristics.Finite volume method was used to solve Navier-Stokes(N-S) equations and shear stress transport(SST) k-ω two-equation turbulence model was applied to simulate the turbulence.The lift-drag characteristics agreed with the wind tunnel data,and the influences of leading edge cut,arc anhedral and static panel on the lift-drag characteristics were studied.The unsteady features of ram-air parachute were calculated by software Fluent to study unsteady lift characteristics and the phenomenon of lift coefficient pulsation was caused by unsteady detached eddy.When angle of attack is equal to 16°,the cycle of lift coefficient is 0.36s.Finally,the longitudinal static stability of ram-air parachute in steady gliding stage was analyzed and two different patterns of turning were compared.Compared with the method of edge deflection on one side,the method of closing intakes port on one side is more stable and effective.

     

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