Experimental study of the blockage effect of a vane anemometer in a small wind tunnel

Bobovnik, Gregor (avtor), Sambol, Peter (avtor), Geršl, Jan (avtor), Kutin, Jože (avtor)

This study investigates the blockage effect of a vane anemometer in a small, closed test section of an open circuit wind tunnel. The experimental analysis examines the axial and cross-sectional positions of the vane anemometer in the test section. The results show that the changes in the calibration results due to different vane anemometer positions are within 1 %. The observed relative differences are compared with the existing guidelines for estimation of the blockage effect. Furthermore, a comparison with a larger wind tunnel facility demonstrates good agreement between the results, suggesting minimal systematic errors due to the blockage effect. The study underscores the potential using the variation in calibration results around the primary calibration point as a possible method to estimate blockage effect contribution to uncertainty in small wind tunnels.

• Jezik: Angleški jezik
• Ključne besede: air velocity, wind tunnels, blockage effects, vane anemometers, intercomparison
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FS - Fakulteta za strojništvo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2025
• Št. strani: 5 str.
• Številčenje: Vol. 38, art. 101561
• PID: 20.500.12556/RUL-171057
• UDK: 533.6
• ISSN pri članku: 2665-9174
• DOI: 10.1016/j.measen.2024.101561
• COBISS.SI-ID: 234738179
• Datum objave v RUL: 30.07.2025

Gradivo je del revije

• Naslov: Measurement : Sensors
• Založnik: Elsevier
• ISSN: 2665-9174
• COBISS.SI-ID: 56318211

Licence

• Licenca: CC BY-NC-ND 4.0, Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by-nc-nd/4.0/deed.sl
• Opis: Najbolj omejujoča licenca Creative Commons. Uporabniki lahko prenesejo in delijo delo v nekomercialne namene in ga ne smejo uporabiti za nobene druge namene.

Projekti

• Financer: ARIS - Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije
• Številka projekta: P2-0223
• Naslov: Prenos toplote in snovi

• Financer: Czech Ministry of Industry and Trade
• Številka projekta: UTR 24E601501