Cylindrical pleated filter elements are widely used because they provide a large filter area in limited space, with the well-known benefits of low pressure drop and high filter capacity. As one cannot simply predict the behavior of a pleated filter from experiments on flat sheet media, GeoDict provides the option to model cylindrical pleated filter elements. These models permit the design of filters that use such cylindrical filter elements based on the simulation of the pressure drop, filter efficiency and filter lifetime.

The models are available not only in the standard GDT format but also as CAD data in STL file format, compatible with third-party simulation tools like Fluent, CFX, and Star-CD. Additionally, the models are provided as volume meshes in GeoDict, which includes the orientation of computational cells to account for the anisotropic properties of the filter media across the individual layers of the filter element.

Clicking the pleat Options’ Edit… button, opens the Cylindrical Pleat Options dialog.

A Result File Name (*.gdr) must be entered. The Result File Name is applied to both the results file (*.gdr), and to the results folder that are saved in the project folder. The *.gdr (GeoDict result) files contain the complete information on the current structure generation.

At the top right of the Cylindrical Pleat Options dialog, the available units (m, mm, and µm) are selectable from the pull-down menu.

Clicking OK confirms the entered pleat options and clicking Cancel closes the Cylindrical Pleat Options dialog and discards the current modifications.

In the PleatGeo section click Generate to generate the cylindrical pleat medium with the entered parameters. If invalid values are entered, an error message appears.