/INTER/TYPE9

Block Format Keyword 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 main surface elements must be oriented toward the secondary nodes.

Format

(1)	(2)	(3)	(5)	(7)
/INTER/TYPE9/`inter_ID`
`inter_title`
`surf_ID`_A	`surf_ID`_L
`R`_TH		`Fric`	`Gap`
	`I`_TH	`I`_EUL	`Upwind`	`F`_S

Definitions

Field	Contents	SI Unit Example
`inter_ID`	Interface identifier. (Integer, maximum 10 digits)
`inter_title`	Interface title. (Character, maximum 100 characters)
`surf_ID`_A	ALE secondary surface identifier. (Integer)
`surf_ID`_L	Lagrangian main surface identifier. = 0 This interface is used as ALE free surface. (Integer)
`R`_TH	Thermal resistance per surface unit. (Real)	$[\frac{K}{W}]$
`Fric`	Coulomb friction. (Real)
`Gap`	Gap for impact activation. (Real)	$[m]$
`I`_TH	Thermal bridge flag. = 1 Yes. (Integer)
`I`_EUL	Eulerian behavior in tangent direction flag. = 1 The grid velocity is set to zero in the tangent direction of the surface for non-impacted secondary nodes. The grid velocity of impacted nodes is fixed by the main segment. Flag `I`_EUL is ignored for secondary nodes having a grid boundary condition. (Integer)
`Upwind`	Upwind for free surface normal computation. = 0 No upwind. = 1 Full upwind. (Real)
`F`_S	Surface tension force. (Real)	$[N]$

Comments

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