Global User Window

With Radioss, it is possible to define a global user window. This is the most general interface between Radioss and external code.

To define a user’s window, two subroutines must be provided. One must be linked with Radioss Starter and the other with Radioss Engine.

The Starter subroutine is called USERWIS and is used to read the global data and to initialize global memory.
The Engine subroutine is called USERWI and is used to compute the forces and moments.

Note: All communication between Radioss and the subroutines takes place within the argument list.