Fluid–structure interaction involving large deformations: 3D simulations and applications to biological systems

Tian, Fang-Bao; Dai, Hu; Luo, H. L.; Doyle, James F.; Rousseau, Bernard

doi:10.1016/j.jcp.2013.10.047

Cited by 337 publications

(246 citation statements)

References 53 publications

(105 reference statements)

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“…So far, the influences of fish-like motions on the propulsive performance have been explored by biological experiments [2], robotic fish [3] and by numerical simulations [8][9][10][11]. By comparison, the body movements in both the biological experiments and the robotic fish cannot be controlled as desired.…”

Section: Introductionmentioning

confidence: 99%

CFD Studies of the Effects of Waveform on Swimming Performance of Carangiform Fish

Cui¹,

Gu²,

Li³

et al. 2017

Applied Sciences

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Carangiform fish, like mackerel, saithe and bass, swim forward by rhythmically passing body waves from the head to the tail. In this paper, the undulating motions are decomposed into the travelling part and the standing part by complex orthogonal decomposition (COD), and the ratio between these two parts, i.e., the travelling index, is proposed to analyse the waveform of fish-like movements. To further study the relative influences of the waveform on swimming performance, a self-propelled model of carangiform fish is developed by the level set/immersed boundary (LS-IB) method, and the in-house code is tested by two cases of flow past a sphere and an oscillating cylinder, respectively. In this study, the travelling index is varied in ranges up to 50% larger or smaller than the biological data. The results show that carangiform fish seem to favour a fast and efficient swimming motion with a travelling index of around 0.6. Meanwhile, we study several numerical cases with different amplitude coefficients (0.5~1.1) and tail-beat frequency (2 Hz~5 Hz), and then compare their swimming performance with each other. We found that the forward speed is closely related to the travelling index and tail-beat frequency, while the swimming efficiency is increased with the tail-beat frequency and amplitude coefficient. These results are also consistent with biological observations, and they might provide beneficial guidance with respect to the future design of robotic fish.

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Section: Introductionmentioning

confidence: 99%

CFD Studies of the Effects of Waveform on Swimming Performance of Carangiform Fish

Cui¹,

Gu²,

Li³

et al. 2017

Applied Sciences

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“…In particular, our final goal is to be able to produce diphthongs. Though many computational efforts have been placed to solve the fluid-structure problem of human phonation (see e.g., [5,6,7,8,9]), to the best of our knowledge little has been done with regard to vocal tract acoustics in moving domains, as it is the case for diphthong or syllable generation. Generating diphthongs requires solving the wave equation in a human vocal tract that evolves from the shape, say for instance of vowel /a/, to the shape of vowel /i/, thus producing the sound /ai/.…”

Section: Introductionmentioning

confidence: 99%

A Stabilized Finite Element Method for the Mixed Wave Equation in an ALE Framework With Application to Diphthong Production

Guasch¹,

Arnela²,

Codina³

et al. 2016

Acta Acustica united with Acustica

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Working with the wave equation in mixed rather than irreducible form allows one to directly account for both, the acoustic pressure field and the acoustic particle velocity field. Indeed, this becomes the natural option in many problems, such as those involving waves propagating in moving domains, because the equations can easily be set in an arbitrary Lagrangian-Eulerian (ALE) frame of reference. Yet, when attempting a standard Galerkin finite element solution (FEM) for them, it turns out that an inf-sup compatibility constraint has to be satisfied, which prevents from using equal interpolations for the approximated acoustic pressure and velocity fields. In this work it is proposed to resort to a subgrid scale stabilization strategy to circumvent this condition and thus facilitate code implementation. As a possible application, we address the generation of diphthongs in voice production.

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“…The force acting on the Lagrange structure from the ambient fluid can be taken as a concentrated force acting on the corresponding nodes; thus, it can be added to the body force f in Equation (7). Compared to the sharp-interface method [47][48][49][50], the pIB method is particularly suitable here, since in this approach all the grid points within the computational domain are treated with a unified equation.…”

Section: The Ib Methods For Fluid-structure Interaction and Heat Transfermentioning

confidence: 99%

Heat Transfer in Non-Newtonian Flows by a Hybrid Immersed Boundary–Lattice Boltzmann and Finite Difference Method

Wang

Tian

2018

Applied Sciences

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Abstract:A hybrid immersed boundary-lattice Boltzmann and finite difference method for fluid-structure interaction and heat transfer in non-Newtonian flow is presented. The present numerical method includes four parts: fluid solver, heat transfer solver, structural solver, and immersed boundary method for fluid-structure interaction and heat transfer. Specifically, the multi-relaxation time lattice Boltzmann method is adopted for the dynamics of non-Newtonian flow, with a geometry-adaptive technique to enhance the computational efficiency and immersed boundary method to achieve no-slip boundary conditions. The heat transfer equation is spatially discretized by a second-order up-wind scheme for the convection term, a central difference scheme for the diffusion term, and a second-order difference scheme for the temporal term. The structural dynamics is numerically solved using a finite difference method. The major contribution of this work is the integration of spatial adaptivity, thermal finite difference method, and fluid flow immersed boundary-lattice Boltzmann method. Several benchmark problems including the developing flow of non-Newtonian fluid in a channel, non-Newtonian fluid flow and heat transfer around a stationary cylinder and flow around a stationary cylinder with a detached filament are used to validate the present method and developed solver. The good agreements achieved by the present method with the published data show that the present extension is an efficient way for fluid-structure interaction and heat transfer involving non-Newtonian fluid. The heat transfer around an oscillating cylinder in non-Newtonian fluid flow at Reynolds number of 100 is also numerically studied using the present solver, considering the effects of the oscillating frequency and amplitude. The results may be used to expand the currently limited database of fluid-structure interaction and heat transfer benchmark studies.

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Fluid–structure interaction involving large deformations: 3D simulations and applications to biological systems

Cited by 337 publications

References 53 publications

CFD Studies of the Effects of Waveform on Swimming Performance of Carangiform Fish

CFD Studies of the Effects of Waveform on Swimming Performance of Carangiform Fish

A Stabilized Finite Element Method for the Mixed Wave Equation in an ALE Framework With Application to Diphthong Production

Heat Transfer in Non-Newtonian Flows by a Hybrid Immersed Boundary–Lattice Boltzmann and Finite Difference Method

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