Chandra Sekaran
Ansys Employee

Construction surface is the right approach. The surface is defined based on a coordinate system. When you create a construction surface in the details window you can change the coordinate system.  The surface is based on the XY plane of the coordinate system. You can find more on this in the documentation at https://ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v231/en/wb_sim/ds_surface_const_geom.html