Use the Force Calculation node to define globally available force and torque variables for the selected domains. Force Calculation is also available and defined for the Magnetic Fields, Magnetic and Electric Fields, Magnetic Field Formulation, and Rotating Machinery, Magnetic interfaces.

Enter a Force name, which is then appended to global variables. The method used to compute forces and torques is integration of the Maxwell stress tensor over the exterior surfaces of the set of domains. For the Magnetic Fields, Magnetic and Electric Fields, and Rotating Machinery, Magnetic interfaces, the force calculation includes both electric and magnetic forces. The computed force is made available as a global vector variable with name <name>.Force<component>_<force name>, where <name> is the Name of the physics interface.

Enter a direction vector for the Torque axis rax and coordinates for the Torque rotation point r0. A torque calculation about a given point (Torque rotation point) is made and defined as a global vector variable, <name>.Torque<component>_<force name>. The resulting torque component parallel to the given Torque axis is given as a global scalar variable, typically <name>.Tax_<force name>.

In frequency domain studies, the cycle-averaged force and torque variables are also defined, with names <name>.Forceav<component>_<force name>, <name>.Tav<component>_<force name> and <name>.Taxav_<force name>. The variables described are still defined and represent the instantaneous force and torque.

An operation called Split by Connectivity () is available by right-clicking the parent node. The operation is useful when the selection spans over objects that are not geometrically connected. Clicking the operation node will automatically generate several nodes where each selection is geometrically connected.