Fraunhofer has developed a method to predict filtration properties based on three-dimensional models of the filter media and process. Using both GeoDict software, continuously developed since 2001, and the Filter Element Simulation Toolbox (FiltEST), Fraunhofer is able to simulate a filtration process at both a micro- and macro-scale.
GeoDict software predicts filtration properties of the microstructure of filter media and direct numerical simulation of the relevant processes. The microstructure can be generated based on a given specification of the filter media or loaded into the software based on a three-dimensional input data from computer tomography. GeoDict allows the user to edit the microstructure virtually, simulating the changes. The virtual testing allows for quicker and more cost-effective testing of prototypes. FiltEST allows for the virtual design of the complete filter element. This allows for computer-aided assessment of the performance properties of a design at early stages of the developmental process. The simulation results can then be exported and used for three-dimensional visualization and post-processing, such as in the GeoDict software.