Physical equations and properties can be specified in this coordinate system. A local coordinate system has been aligned with this work plane. In addition, a Base Vector System, Rotated System, Cylindrical System, and Spherical System can also be defined relative to a work plane's local coordinate system.ДЄ work plane coincides with the bottom face of a cylinder that is at an angle to the global coordinate system. Physical equations can now be defined using the new coordinate axes xw, yw, and zw. This feature creates a coordinate system corresponding to a chosen work plane, thereby making it easy to create a coordinate system for use in physics that is aligned to certain geometric entities. In the Coordinate Systems menu of the Definitions node, you can choose a new coordinate system type: System from Geometry. Now, you can use a local coordinate system that coincides with the positioning and alignment of a geometric entity to define these physical equations and properties. Examples of this are the definitions of anisotropic materials' physical parameters, which are dependent on their orientations. Yet, if the geometry of the modeling domain does not align easily with the global coordinate system, it can be difficult to define the physical equations and properties that are dependent on the coordinates' directions. Sometimes, definitions of physical equations and properties are defined using the directional vectors of the coordinate system to which they belong.

Use Coordinate Systems Defined by Geometry Orientations Then, the work plane and its local coordinate system axes - xw, yw, and zw - appear in the Graphics window. To use this new functionality, you choose the work plane in the Coordinate System section in the Settings window. New primitives that are then added to your geometry use this new local coordinate system, so you can more easily specify the primitive's position and orientation. You can do this by first creating a work plane, which defines the local coordinate system in which you would like to work. Now, you can work in a local coordinate system when editing the settings of a primitive or transform feature that is used to build your geometry. Use Coordinate Systems Defined by Work Planes When Creating GeometriesД«efore the new version of COMSOLВ Multiphysics В®, when building your geometries, you had to define the positions and orientations of primitive objects using the standard global coordinate system. In addition, some geometry operations are now much faster and use less memory. In this version, you can specify local coordinate systems for easier geometry building and physics definition operations, and the new Remove Details feature automatically creates virtual geometry operations for you. The geometry improvements in COMSOLВ Multiphysics В® version 5.3 are quite extensive.

How to operate comsol 5.3