Hrúz, MichalPecho, PavolBugaj, Martin2021-03-102021-03-1020201338-8215http://drepo.uniza.sk/handle/hdluniza/406Wind tunnels are the most widely used tools when comes to validation of Reynold number. Most of wind tunnels use various air straighteners or flow conditioners to achieve as most unified air flow as it’s possible. This article deals with design and creation procedure of air flow straightener – honeycomb screen. Based on mathematical relations and empirical experience defines dimensions and characteristics for subsonic wind tunnel of the Air Transport Department of University of Žilina. Wind tunnel equipped with a suitable screen provides more relevant and accurate data, which are crucial for final validation of results of test objects.enhttp://creativecommons.org/licenses/by/4.0/honeycombair straightenerflow conditionerflow straightenerscreenwind tunnelArticlehttps://doi.org/10.26552/aer.C.2020.2.1