Fluid-Structure Interaction Analysis of Parachute Finite Mass Inflation

Parachute inflation is coupled with sophisticated fluid-structure interaction (FSI) and flight mechanic behaviors in a finite mass situation. During opening, the canopy often experiences the largest deformation and loading. To predict the opening phase of a parachute, a computational FSI model for t...

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Bibliographic Details
Published in:International journal of aerospace engineering 2016-01, Vol.2016 (2016), p.1-8
Main Authors: Gao, Xinglong, Tang, Qiangang, Zhang, Qingbin
Format: Article
Language:English
Subjects:
Aerospace engineering
Canopies
Colleges & universities
Deformation
Finite volume method
Fluid mechanics
Fluid-structure interaction
Inflation
Lifesaving
Mathematical analysis
Mathematical models
Navier-Stokes equations
Parachutes
Pressure distribution
Simulation
Velocity
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Summary:Parachute inflation is coupled with sophisticated fluid-structure interaction (FSI) and flight mechanic behaviors in a finite mass situation. During opening, the canopy often experiences the largest deformation and loading. To predict the opening phase of a parachute, a computational FSI model for the inflation of a parachute, with slots on its canopy fabric, is developed using the arbitrary Lagrangian-Euler coupling penalty method. In a finite mass situation, the fluid around the parachute typically has an unsteady flow; therefore, a more complex opening phase and FSI dynamics of a parachute are investigated. Navier-Stokes (N-S) equations for uncompressible flow are solved using an explicit central difference method. The three-dimensional visualization of canopy deformation as well as the evolution of dropping velocity and overload is obtained and compared with the experimental results. This technique could be further applied in the airdrop test of a parachute for true prediction of the inflation characteristics.
ISSN:1687-5966
1687-5974
DOI:10.1155/2016/1438727