1. Reference problem#

1.1. Geometry#

_images/100002000000030E00000211E8D2223562AF03BC.png _images/10000201000000500000006DDE3AB5ED295CA023.png

The figure above shows the lyre in question. The pipe has a radius of 0.2 m and a thickness of 0.04 m. The radii of curvature are 0.2 m.

1.2. Material properties#

Steel :

Stiffness

\(E=190{10}^{9}\mathit{Pa}\) \(\mathrm{\nu }=0.3\)

Density

\(\mathrm{\rho }=7800\mathit{kg}/{m}^{3}\)

Water :

Celerity

\(c=970m/s\)

Density

\(\mathrm{\rho }=732\mathit{kg}/{m}^{3}\)

1.3. Boundary conditions and loads#

The pipe is embedded on the mesh unit S1pipe. Zero pressure is applied to the mesh group S1EAU.

1.4. Initial conditions#

Not applicable.