Experimental investigation of a vane probe blockage effect in a small wind tunnel

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

The blockage effect of a vane probe with a high blockage ratio is investigated in a small, open-circuit wind tunnel with a box-type test section. A laser Doppler anemometer is utilized to determine a reference air velocity. The study examines how different cross-sectional and axial positions of the vane probe in the test section affect the calibration results. The experiments were designed so that no access to the test section was required during individual test series, in which the probe was moved along a single direction within the test section. The results highlight the importance of the positioning of the vane probe, in particular the effect of insertion depth. The test results were also analysed in the context of literature-based uncertainty estimates related to blockage effects. Measurements of the velocity fields upstream of the vane probe showed that the points for the reference velocity measurement were in regions where the velocity disturbances caused by the vane probe were minimal. Comparative measurements conducted in a larger, closed-circuit wind tunnel revealed no systematic shifts directly attributable to the applied calibration procedure or blockage effects. With the aim of minimizing the blockage effects, the presented approach based on measurement of velocity perturbation fields allows a quali- tative assessment of the adequacy of selected reference velocity measurement points.

• Jezik: Angleški jezik
• Ključne besede: vane probe, laser doppler anemometer, wind tunnel, blockage effect, velocity perturbations, 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: 11 str.
• Številčenje: Vol. 261, art. 119919
• PID: 20.500.12556/RUL-176657
• UDK: 006.91:628.854.2
• ISSN pri članku: 1873-412X
• DOI: 10.1016/j.measurement.2025.119919
• COBISS.SI-ID: 260334851
• Datum objave v RUL: 08.12.2025

Gradivo je del revije

• Naslov: Measurement
• Založnik: Elsevier
• ISSN: 1873-412X
• COBISS.SI-ID: 23272709

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: krilni anemometer, Laserski Dopplerjev anemometer, vetrovnik, zastojni učinek, perturbacije hitrosti, primerjava

Projekti

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

• Financer: Drugi - Drug financer ali več financerjev
• Številka projekta: UTR 24E601501
• Naslov: /