/INTER/TYPE9

Block Format Keyword

/INTER/TYPE9 - Interface Type 9 (ALE Lagrange with void opening and free surface)

Description

Describes the ALE Lagrange with void opening and free space. Non-impacted ALE nodes are on a free surface. The grid velocity is equal to the material velocity in normal direction. The normal of the master surface elements must be oriented toward the slave nodes.

Format

(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)
/INTER/TYPE9/inter_ID
inter_title
surf_IDA	surf_IDL
RTH		Fric		Gap
	ITH	IEUL		Upwind		FS

Field	Contents	SI Unit Example
inter_ID	Interface identifier (Integer, maximum 10 digits)
inter_title	Interface title (Character, maximum 100 characters)
surf_IDA	ALE slave surface identifier (Integer)
surf_IDL	Lagrangian master surface identifier (Integer) = 0: this interface is used as ALE free surface.
RTH	Thermal resistance per surface unit (Real)
Fric	Coulomb friction (Real)
Gap	Gap for impact activation (Real)
ITH	Thermal bridge flag (Integer) = 1: yes
IEUL	Eulerian behavior in tangent direction flag (Integer) = 1: the grid velocity is set to zero in the tangent direction of the surface for non-impacted slave nodes. The grid velocity of impacted nodes is fixed by the master segment. Flag IEUL is ignored for slave nodes having a grid boundary condition.
Upwind	Upwind for free surface normal computation (Real) = 0: no upwind = 1: full upwind
FS	Surface tension force (Real)

1.	Format Line 5 is not compatible with the master/slave formulation of rigid bodies. If some nodes of the Lagrangian master surface are in a rigid body, the rigid body motion does not take into account the interfaces forces applied to these nodes.