2021 Fiscal Year Annual Research Report
Development of a reliable and adaptive multi-physics computational method for fluid-structure interactions encountered in ocean/coastal engineering
| Project/Area Number |
18K04368
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| Research Institution | Kyoto University |
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Principal Investigator |
Khayyer Abbas 京都大学, 工学研究科, 准教授 (80534263)
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| Project Period (FY) |
2018-04-01 – 2022-03-31
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| Keywords | particle method / FSI / hydroelastic / composite structures / adaptivity / anisotropic / multiphysics |
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| Outline of Annual Research Achievements |
The target of this research, i.e., development of an advanced adaptive and multi-physics computational method for hydroelastic FSI, could be systematically achieved through coherent and rigorous developments made with respect to three aspects of reliability, adaptivity and generality. A computational method has been developed capable of reproducing hydroelastic FSI including those corresponding to anisotropic composite structures in both 2D and 3D. The computational method provides the possibility of selection of either Newtonian or Hamiltonian structure models as well as SPH or MPS formalism. With respect to presence of material discontinuities in composite structures, a robust Hamiltonian structure model was developed and coupled with a fluid model, resulting in ISPH-HSPH hydroelastic FSI solver [1] as the first computational method in the context of particle methods for hydroelastic FSI corresponding to composite structures. Such development was also made with respect to MPS formalism resulting in MPS-HMPS solver [2] as the first 3D entirely Lagrangian meshfree projection-based hydroelastic FSI solver. The ISPH-HSPH solver was also extended to 3D and carefully modified for treatment of structural material anisotropy. A distinct development associated with a thoroughly Newtonian solver corresponded to ISPH-SPH for composite structures with staggered integration for structure model as well as an adaptive ISPH-SPH solver.
[1] Khayyer et al., Applied Mathematical Modelling, 94, 242-271, 2021.
[2] Khayyer et al., Journal of Fluids and Structures, 105, 103342, 2021.
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