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Quizzed article | REF: BM5199 V1

Fluid-structure interactions Mathematical modelling and numerical methods

Author: Jean-François SIGRIST

Publication date: April 10, 2019, Review date: January 27, 2021 | Lire en français

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    2. Modeling fluid loading

    Knowledge of the loading imposed by the fluid flow is one of the key elements in IFS modeling. Various approaches can be used to represent it.

    2.1 Analytical or empirical models

    Analytical and empirical models can be used to characterize loading under given conditions, for example :

    • when the effect of the fluid is reducible to a scalar (or multi-scalar) value, it is possible to account for the IFS in a model calculating the vibratory response of a structure coupled with it. The inertial effect is due to the presence of an incompressible fluid; initially at rest, it is set in motion by the vibrations of the structure and imposes a force proportional to the local acceleration of the wetted surface. The force characterizing...

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