The properties of porous media and composite materials depend strongly on the geometric distribution of the constituent phases. The GeoDict Software permits to compute material properties based on three-dimensional computer-tomography (CT) images of existing materials and virtual (v)CTs of modeled materials. In either case, the property is computed by solving a partial differential equation on the 3d image and post-processing the solution. Thus, by varying the geometric parameters in the computer it is possible to design new porous media and composite materials with improved properties.
The considered real materials and virtual materials range from fibrous and woven to sintered and piled materials. Absolute permeability and relative permeability, effective thermal conductivity and effective electric conductivity as well as pressure drop, filter efficiency and filter life time are computed. The simulated results are in good to excellent quantitative agreement with experimental data.