Number of the records: 1
Drag Estimation in the Near Wake of the NREL's Airfoils Based on Hot-Wire Data
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SYSNO ASEP 0575055 Document Type C - Proceedings Paper (int. conf.) R&D Document Type The record was not marked in the RIV Title Drag Estimation in the Near Wake of the NREL's Airfoils Based on Hot-Wire Data Author(s) Yanovych, Vitalii (UT-L)
Duda, D. (CZ)
Uruba, Václav (UT-L) RID, ORCID
Antoš, Pavel (UT-L) RID, ORCIDArticle number 02012 Source Title MATEC Web of Conferences, 369. - Grenoble : EDP Sciences, 2022 Number of pages 9 s. Publication form Online - E Action MATEC Web of Conferences : MDFMT & XXIII. AEaNMiFMaE-2022 /40./ Event date 12.09.2022 - 14.09.2022 VEvent location Piešťany Country SK - Slovakia Event type WRD Language eng - English Country FR - France Keywords hot-wire ; NREL's airfoils ; wake topology ; drag coefficient Subject RIV BK - Fluid Dynamics OECD category Applied mechanics Institutional support UT-L - RVO:61388998 DOI 10.1051/matecconf/202236902012 Annotation This paper presents the results of the drag coefficient estimations for different types of NREL airfoils based on the experimental data. Namely, it was S803, S807, S813, and S817 profiles with the same chord length. The investigations were conducted at three angles of attack α=0°, α=±5°, different chord-based Reynolds numbers 0.6×105, 1.3×105 and 2.6×105. While, measuring cross-sections were placed behind the trailing edge at x∙c−1≈0.2, 0.4 and 1.0. Experimental data were collected using a hot-wire split fiber probe 55R55, which allowed us to estimate the characteristics of turbulent flow in stream-wise and crosswise directions. According to the obtained results, the highest and lowest Cd values correspond to profiles S817 and S803, respectively. Moreover, the results show that more asymmetric profiles S803 and S807 have the lowest resistance at zero angles of attack. Workplace Institute of Thermomechanics Contact Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Year of Publishing 2024 Electronic address https://www.matec-conferences.org/articles/matecconf/pdf/2022/16/matecconf_aenmmte2022_02012.pdf
Number of the records: 1