Honeycomb sieves are starting to see applications in wastewater screening. What is the flow resistance of a honeycomb screen?
I would expect something similar to the Kirschmer formula (used for bar screens):
Headloss = constant, dependent on bar shapes X function of square of velocity
(Actually, the Kirschmer formula would be corrected for angle and for loading of the screen)
where velocity means in the screen, so the free survece is taken into account. While a honeycomb can have a far larger free surface compared to a screen with holes, I would expect the first factor to be different to, as the thinner bars in the honeycomb allow for a different flow regime immediatly downstream.
What is the headloss for flow through a honeycomb screen?