Numerical simulation of fluid-structure interaction by SPH

  • Authors:

  • Carla Antoci;Mario Gallati;Stefano Sibilla

  • Affiliations:

  • Dipartimento di Ingegneria Idraulica e Ambientale, Universití degli Studi di Pavia, via Ferrata, 1, 27100 Pavia, Italy;Dipartimento di Ingegneria Idraulica e Ambientale, Universití degli Studi di Pavia, via Ferrata, 1, 27100 Pavia, Italy;Dipartimento di Ingegneria Idraulica e Ambientale, Universití degli Studi di Pavia, via Ferrata, 1, 27100 Pavia, Italy

  • Venue:
  • Computers and Structures
  • Year:
  • 2007

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Abstract

A Lagrangian model for the numerical simulation of fluid-structure interaction problems is proposed in the present paper. In the method both fluid and solid phases are described by smoothing particle hydrodynamics: fluid dynamics is studied in the inviscid approximation, while solid dynamics is simulated through an incremental hypoelastic relation. The interface condition between fluid and solid is enforced by a suitable term, obtained by an approximate SPH evaluation of a surface integral of fluid pressure. The method is validated by comparing numerical results with laboratory experiments where an elastic plate is deformed under the effect of a rapidly varying fluid flow.