Available only when Physics Preference is set to CFD, the Solver Preference is set to Fluent, and the Export Format is set to Standard, the Export Preview Surface Mesh option controls the export of the preview surface mesh elements. This option can be used when the bodies have been meshed only partially, that is, not all volumes have been filled with elements and only previewing of surface meshes was done. In such cases, you can choose to export the previewed surface meshes and continue meshing in Fluent Meshing.

The default is No, which results in export of only volume mesh elements to the Fluent mesh file. You can change this to Yes to export both the volume mesh and the preview surface meshes to the Fluent mesh file.