7.25. Element Death

This section is referenced in the following other sections

Simulation Setup: Element Death

7.25.1. Element Death

Scope: Aria Region
Summary: Allows the specification of an element death criterion to one or more element volumes. The group of element volumes plus a death criterion make up a “death instance”.

begin Element Death Death Name

   Add Volume Block Name...

   Criterion {=} {avg nodal value of | death criterion type undefined | element value of | max nodal value of | min nodal value of} Variable Name {< | <= | = | > | >= | death criterion compare type undefined} Threshold Value

end Element Death Death Name

7.25.1.1. Line Commands

Add Volume

Syntax: Add Volume Block Name…
Summary: Specifies the names identifying an element volume to which an element death criterion is to be applied. Line can be repeated as needed to add multiple volumes. A group of element volumes plus a death criterion make up a “death instance”.

Parameter	Value	Default
Block Name	string…	–

Criterion

Syntax: Criterion {=} {avg nodal value of | death criterion type undefined | element value of | max nodal value of | min nodal value of} Variable Name {< | <= | = | > | >= | death criterion compare type undefined} Threshold Value
Summary: The death criterion for one or more element volumes. Currently designed to support the specification of a threshold for a scalar variable defined on either a node or element. For nodal variables, various operations such as Min., Max. and Avg. are provided to reduce the nodal values to a single element value. For an element variable no operations are given as there is only one value per element. A group of element volumes plus a death criterion make up a “death instance”. Currently only one criterion is allowed per death instance.

Parameter	Value	Default
{=}	{= \| are \| is}	–
DeathCriterionType	{avg nodal value of \| death criterion type undefined \| element value of \| max nodal value of \| min nodal value of}	–
Variable Name	string	–
DeathCriterionCompareType	{< \| <= \| = \| > \| >= \| death criterion compare type undefined}	–
Threshold Value	real	–

7.25.2. Cdfem Death

Scope: Aria Region
Summary: Allows the specification of an element death criterion to one or more element volumes. The group of element volumes plus a death criterion make up a “death instance”.

begin Cdfem Death Death Name

   Add Volume Block Name...

   Criterion {=} Variable Name {< | > | cdfem inequality criterion undefined} Threshold Value

end Cdfem Death Death Name

7.25.2.1. Line Commands

Add Volume

Syntax: Add Volume Block Name…
Summary: Specifies the names identifying an element volume to which an element death criterion is to be applied. Line can be repeated as needed to add multiple volumes. A group of element volumes plus a death criterion make up a “death instance”.

Parameter	Value	Default
Block Name	string…	–

Criterion

Syntax: Criterion {=} Variable Name {< | > | cdfem inequality criterion undefined} Threshold Value
Summary: The death criterion for one or more element volumes. A group of element volumes plus a death criterion make up a “death instance”. Currently only one criterion is allowed per death instance.

Parameter	Value	Default
{=}	{= \| are \| is}	–
Variable Name	string	–
CDFEMInequalityCriterion	{< \| > \| cdfem inequality criterion undefined}	–
Threshold Value	real	–

7.25.3. Transfer Element Death

Syntax: Transfer Element Death
Summary: Cause execution of element death to occur at beginning of a time step rather than at the end of the step.