ALE/Eulerian & Fluid/Structure Interaction in LS-DYNA

Audience

This course is intended for engineers and graduate students who already have finite element analysis experience, and are expanding their applications to Fluid and Fluid/Structure Interaction problems.

Notes

The instructor for this course is Dr. M’hamed Souli. Lectures begin daily at 9:00 a.m. and run until 5:30 p.m., except for the last day when the course concludes at 12:00 p.m. The classroom machines are PCs running Linux (CA) or Windows (MI).

Contents

Introduction to Eulerian and Lagrangian Formulations

  • ALE smoothing algorithms
    • Simple Average
    • Volume Weighting
    • Equipotential
  • Advection Algorithms
    • First order donor SALE algorithm
    • Second order Van Leer
    • Second order + Half Index shift
  • Material and void
    • Advection algorithm in voided material
  • Multi-material formulation
    • Advection in multi-material formulation
    • Pressure equilbrium
  • Fluid/Structure Coupling
    • The ALE Fluid/Structure coupling
    • The automatic Fluid/Structure coupling
    • The momentum coupling
    • The penalty coupling