ICCM Conferences, The 8th International Conference on Computational Methods (ICCM2017)

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Fluid-structure interaction simulation via the coupling of finite element and lattice Boltzmann methods
Fei Jiang, Xian Chen, Junji Ohgi

Last modified: 2017-06-19


A numerical framework is proposed to couple the finite element and lattice Boltzmann methods for simulating fluid-structure interaction problems. The lattice Boltzmann method is used as an efficient method for solving the weakly-compressible fluid flows. The non-linear finite element with the explicit Newmark scheme for time integration is used to solve the structural deformation. The two methods are coupled via a direct-forcing immersed boundary method with a subiteration scheme. Validations of the proposed coupling method have been carried out by testing a vortex induced vibration problem. A good agreement is found with the reference results. This work was supported by JSPS KAKENHI Grant Numbers 16K18331.

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