Simulate with complex geometries and complex physics
MAT
(required) define the material flag to be used, when the geometry part fills new points (mostly for initial filling)
The MAT tag in the alias definition associates the boundary elements with the PhysicalProperties of a given material. These PhysicalProperties will be inherited to the points filled by this boundary.
Example:
The use of MAT$MAT1$ in the alias definition establishes the link between material and the boundary element "car" .
The material index can be visualized on the pointcloud with the index %ind_med% :
# Definition of Physical properties for material $MAT1$
density($MAT1$) = 2500.0 # density in kg/(m^3)
cv($MAT1$) = 1500.0 # heat capacity in N*m/(kg*K)
lambda($MAT1$) = 2.0 # heat conductivity in W/(m*K)
eta($MAT1$) = 1.0e6 # viscosity in Pa*s
mue($MAT1$) = 0.0 # shear modulus Pa
sigma($MAT1$) = 0.3 # surface tension in N/m
heatsource($MAT1$) = 0 # heat source W/(m^3)
gravity($MAT1$) = (0.0, 0.0, 0.0) # gravity in m/s^2
...
begin_alias{}
"car" = " BC$...$ ACTIVE$...$ IDENT%...% MAT$MAT1$ TOUCH%...% MOVE$...$ CHAMBER1 " #referencing the physical properties.
end_alias