SINPA, a full 3D fluid-structure software package for parachute simulation

Ibos, C.; Lacroix, Cyril; Chuzet, L.; Granville, Didier

doi:10.2514/6.1997-1508

Cited by 6 publications

(4 citation statements)

References 3 publications

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“…64 The ALE method inherently describes the grid motion independent of space coordinates based on an Euler description and material coordinates based on a Lagrange description and thus provides a novel solving strategy for hyperbolic problems involving a moving boundary. Given this philosophy, many relevant versions are developed, including the finite difference-based simplified arbitrary Lagrangian–Eulerian Navier–Stokes code, 65,66 the finite element-based ALE algorithm 67–70 and the finite volume-based ALE algorithm. 71,72 However, the ALE finite volume method has not yet been employed in numerical simulations involving parachutes, which differs from the former two.…”

Section: Parachute Aerodynamicsmentioning

confidence: 99%

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Numerical simulation of parachute inflation: A methodological review

Cao

Nie

2017

Proceedings of the Institution of Mechanical Engineers, Part G:

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The parachute inflation process involves fluid–structure interaction problems posing several mathematical and engineering challenges, e.g. accurate aerodynamics calculations for bluff-body geometries involving with moving boundary, appropriate structural models in predicting the behavior of canopy, and realization of the coupling between the fluid and structure. These challenges attract the attention of scholars worldwide, and considerable achievements have been obtained in applying numerical methods and simulations to design multifarious parachutes. In this paper, the authors highlight the advances in the following fields: the methods suitable for time-dependent flow around bluff-body geometries, the accurate structural models in consideration of the under-constrained and no-compression nature of the canopy, and the advantages and disadvantages of different coupling algorithms in terms of numerical stability and computational economics. Moreover, in order to simulate the parachute inflation more realistically, we focus on accurate representation of three physical phenomena, as follows: an appropriate model of the flow through porous media, an accurate treatment of the wrinkling phenomenon of the canopy, and a consistent representation of the impact-contact problem associated with the inflation process. Finally, based on a review of existing literature, we offer recommendations for future research on the application of numerical methods for simulating the inflation process.

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Section: Parachute Aerodynamicsmentioning

confidence: 99%

“…102 ). Many numerical experiments 67,68,102 were conducted to validate that the shell theory is considerably effective. NASTRAN and ABAQUS also provide similar shell formulation for membrane analysis.…”

Section: Structure Modeling Of Canopy Fabricmentioning

confidence: 99%

Numerical simulation of parachute inflation: A methodological review

Cao

Nie

2017

Proceedings of the Institution of Mechanical Engineers, Part G:

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“…Other solution approaches with full volume discretization allow for a detailed modeling of the surrounding fluid, but at the expense of a higher computational cost. Among the first grid-based approaches, arbitrary Lagrangian-Eulerian 3/23 (ALE) Navier-Stokes solvers in conjunction with an MSD structural model [10], membrane elements [20] and shells [21] (including fabric porosity effects) can be found. An important family of high-fidelity methods also emerged in the context of the deforming-spatialdomain/stabilized space-time (DSD/SST) technique [22,23], see applications in [24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Aeroelastic analysis of parachute deceleration systems with empirical aerodynamics

Ortega

Flores

2019

Proceedings of the Institution of Mechanical Engineers, Part G:

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A technique for the aeroelastic solution of parachute decelerators is presented in this work. The methodology uses empirical aerodynamics, based on a filling-time inflation model and Ludtke's area law, coupled to two explicit structural solution approaches. A mass-spring-damper technique allows solving the deployment of the system (when the grid is highly distorted) efficiently, and a finite element model is used for the accurate calculation of the structural loads and stresses during parachute opening and steady flight. The coupling strategy is staggered and the models share the same mesh. The methodology is intended for practical calculations of deceleration systems, and provides useful performance and structural data minimizing model complexity and computational cost. The suitability of the proposed technique is assessed by comparisons with reference test drop data.

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“…CEV has a base in Toulouse, formerly known as CAP (Centre Aérotransport et Parachutage) dedicated to the technical evaluation of aeromibility. CAP, the once national designer of French airdrop systems, started developing the numerical simulation of parachutes (SINPA) in the 90' as an aid to development [2][3][4] . CEV now continues developing a modelling capability as a support to evaluation and expertise, and as a sponsor for the technique to become usable by industry.…”

Section: Introductionmentioning

confidence: 99%