Automatic scaling systems are available in COMSOL Multiphysics for three distinct geometrical configurations: Cartesian,
Cylindrical, and
Spherical. Which ones you can use depends on the space dimension of the Component.
The available scaling types in plane 2D models are Cartesian and
Cylindrical. Cartesian domains are stretched in one or two directions depending on whether they are attached to an edge or to a corner of the physical region of interest.
The available scaling types in 2D axisymmetric models are Cylindrical and
Spherical. The axisymmetric cylindrical configuration, from the practical point of view, behaves identically to the plane 2D Cartesian option. Similarly, the axisymmetric spherical scaling is similar to plane 2D cylindrical scaling, except that it is always centered on the axis.
The available scaling types in 3D are Cartesian,
Cylindrical and
Spherical. The Cartesian scaling domains are of three different types. Depending on whether they are attached to a surface, an edge, or a point in the physical domain, they are stretched in one, two, or three directions, respectively. Cylindrical scaling domains are also of three different types: radially stretched, axially stretched, and stretched both radially and axially. Spherically scaled domains are always stretched only in the spherical domain’s radial direction.