I am looking for theoretical and/or empirical information about the extent in which a mesh/screen/net made of some kind of wires is slowing down airflow thru it, comparing to air flowing around it. At this point I am interested in meshes starting at a scale of insects screens (about 1mm) and ending at a hole scale of about 1 inch. I would like to understand to what extent making the wires thinner, using different profile or other "tricks" may improve the airflow. The question comes from a hunch that a net with a specific height partial to a larger area in which air should flow, is slowing the airflow thru it, in a way which is problematic (getting wet). Any references to accessible document (i.e. books, papers) would be welcome.