Počet záznamů: 1
Drag Estimation in the Near Wake of the NREL's Airfoils Based on Hot-Wire Data
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SYSNO ASEP 0575055 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV Záznam nebyl označen do RIV Název Drag Estimation in the Near Wake of the NREL's Airfoils Based on Hot-Wire Data Tvůrce(i) Yanovych, Vitalii (UT-L)
Duda, D. (CZ)
Uruba, Václav (UT-L) RID, ORCID
Antoš, Pavel (UT-L) RID, ORCIDČíslo článku 02012 Zdroj.dok. MATEC Web of Conferences, 369. - Grenoble : EDP Sciences, 2022 Poč.str. 9 s. Forma vydání Online - E Akce MATEC Web of Conferences : MDFMT & XXIII. AEaNMiFMaE-2022 /40./ Datum konání 12.09.2022 - 14.09.2022 Místo konání Piešťany Země SK - Slovensko Typ akce WRD Jazyk dok. eng - angličtina Země vyd. FR - Francie Klíč. slova hot-wire ; NREL's airfoils ; wake topology ; drag coefficient Vědní obor RIV BK - Mechanika tekutin Obor OECD Applied mechanics Institucionální podpora UT-L - RVO:61388998 DOI 10.1051/matecconf/202236902012 Anotace 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. Pracoviště Ústav termomechaniky Kontakt Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Rok sběru 2024 Elektronická adresa https://www.matec-conferences.org/articles/matecconf/pdf/2022/16/matecconf_aenmmte2022_02012.pdf
Počet záznamů: 1