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Quizzed article | REF: BM5200 V1

Numerical methods of coupled fluid/structure calculation

Author: Jean-François sigrist

Publication date: October 10, 2010, Review date: March 10, 2021 | Lire en français

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    1. General issues of fluid/structure coupling

    1.1 Mechanism of fluid/structure coupling

    A fluid/structure coupling problem involves two continuous media (solid and fluid) such as :

    • solid and fluid media exchange mechanical energy;

    • the solid and fluid phases are distinct;

    • solid and fluid media do not exchange mass.

    The mechanical coupling between the two media takes place in both directions at their contact surface: the vibrations of the structure, under the effect of the forces imposed by the fluid flow, modify the configuration of the fluid/structure interface; the fluid flow conditions are thus affected, which in turn results in a modification of the force exerted on the structure...

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