1. Discretization

1.1. Degrees of freedom

Finite element

Degrees of freedom (at each vertex node)

MEFLTR3, MEFLTR6, MEFLQU4, MEFLQU8, MEFLQU9	PRES: pressure PHI: displacement potential
MEFLSE2, MEFLSE3	PHI: fluid displacement potential
MEFSSE2, MEFSSE3	DX, DY: structural displacement components PHI: potential for fluid movement
MEAXFLT3, MEAXFLT6, MEAXFLQ4, MEAXFLQ8, MEAXFLQ9	PRES: pressure PHI: displacement potential
MEAXFLS2, MEAXFLS3	PHI: fluid displacement potential
MEAXFSS2, MEAXFSS3	DX, DY: structural displacement components PHI: potential for fluid movement

1.2. Stiffness matrix support mesh

Modeling

Mesh

Finished Element

Remarks

2D_ FLUIDE	TRIA3	MEFLTR3
	TRIA6	MEFLTR6
	QUAD4	MEFLQU4
	QUAD8	MEFLQU8
	QUAD9	MEFLQU9
2D_ FLUI_STRU	SEG2	MEFSSE2
	SEG3	MEFSSE3
AXIS_FLUIDE	TRIA3	MEAXFLT3
	TRIA6	MEAXFLT6
	QUAD4	MEAXFLQ4
	QUAD8	MEAXFLQ8
	QUAD9	MEAXFLQ9
AXIS_FLUI_STRU	SEG2	MEAXFSS2
	SEG3	MEAXFSS3

1.3. Cargo support mesh

Modeling

Mesh

Finished Element

Remarks

2D_ FLUIDE	SEG2	MEFLSE2
	SEG3	MEFLSE3
AXIS_FLUIDE	SEG2	MEAXFLS2
	SEG3	MEAXFLS3