Improvements in the Characterisation of Permeability and Inertial Factor of Insect-Proof Screens through Pressure Drop Coefficients

Permeability and inertial factor are the most relevant variables in Forchheimer equation. They important to estimate pressure drop when a fluid flow is passing through porous media. However, insect-proof screens field, existing models date still providing poor predictive accuracy, part due they based on 2D porosity of screens. This work provides novel for permeability factor, which developed from experimental data wind tunnel analytical estimation 3D porosity. Instead fitting directly observed training values we propose focus modelling efforts finding dependent constants Since two can have same but different porosity, this makes also more reliable. The combination all these aspects has led parametric that overcome by far predictions previous literature.