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Develop a three-dimensional parallel fluid–structure interaction solver capable of simulating complex, large-deformation flexible structures in incompressible flow.

April 1, 2020Physics of Fluids

Fluid–structure interaction simulation based on immersed boundary-lattice Boltzmann flux solver and absolute nodal coordinate formula

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Develop a three-dimensional parallel fluid–structure interaction solver capable of simulating complex, large-deformation flexible structures in incompressible flow.
Coupled an immersed boundary-lattice Boltzmann flux solver with an absolute nodal coordinate formula structural dynamics model.
Accelerated moving-boundary computations using parallel Euler–Lagrangian interpolation matrix assembly, sparse matrix techniques, and an implicit boundary condition enforcement method.
Built a multibody dynamics solver integrating rigid bodies, cable elements, and plate elements to simulate parachute inflation across varying canopy Young's moduli.
High-order absolute nodal coordinate formula discretization substantially reduced the required finite element count compared with standard finite element methods.
Numerical validation demonstrated robust strong coupling and successfully characterized the unsteady vortex structures driving dynamic parachute canopy deformation.

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Implication

Simulation study demonstrates efficient modeling of large-deformation fluid–structure interactions in parachute systems, highlighting robust coupling between flexible dynamics and unsteady vortices.

Cite This Study

Fan et al. (2020) studied this question.

synapsesocial.com/papers/6ab3590d98dc0adf45deb76a https://doi.org/10.1063/1.5144752

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Fluid–structure interaction simulation based on immersed boundary-lattice Boltzmann flux solver and absolute nodal coordinate formula

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Discussion

Implication

Cite This Study

Fluid–structure interaction simulation based on immersed boundary-lattice Boltzmann flux solver and absolute nodal coordinate formula

Key Points

Discussion

Implication

Cite This Study

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