ALIAS

Note: All names of geometry parts need to be assigned to special aliases (see AliasForGeometryItems). An alias block contains replacement definitions, i.e. what a certain string occurring in USER_common_variables will be replaced with. If MESHFREE encounters one of the text strings given in the alias block on the left hand side during read-in of USER_common_variables, then they will by replaced by the string given on the right hand side. In order to exclude misinterpretations, text strings to be replaced have to be put in between &...& icons. Note:

• Definition and referencing of vectorial aliases is also possible. The entries have to be of the same type, i.e. string or number.
• Referencing aliases on the left hand side of another alias definition is also possible.
• See also ConstructClause. For calculations that only need to be done once at the beginning of the simulation, this is often preferable.
• See also Variables.

Example 1: classical definition During read-in of USER_common_variables the line will be replaced by: BC_T($TemCond$) = [ Y%ind_x(1)%/Y%ind_h% * 23.452444 * 0.001 ] Example 2: implicit usage of alias During read-in of USER_common_variables &Class(i)& will be replaced by the respective entry of Class. Example 3: multiple alias and overwriting Whenever an alias is defined again, using the standard definition symbol "=", it will not be overwritten. Instead, a new alias with an incremented index in curly braces is created. To overwrite an alias definition, one may use the strong definition symbol ":=", like in the following example Example 4: re-evaluation of aliases at every time cycle In order to retrieve the numerical values of the alias variables, use the function valA() .