Počet záznamů: 1
Measurement of flow separation in a human vocal folds model
- 1.
SYSNO ASEP 0360761 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Measurement of flow separation in a human vocal folds model Tvůrce(i) Šidlof, Petr (UT-L) RID
Doaré, O. (FR)
Cadot, O. (FR)
Chaigne, A. (FR)Zdroj.dok. Experiments in Fluids. - : Springer - ISSN 0723-4864
Roč. 51, č. 1 (2011), s. 123-136Poč.str. 14 s. Jazyk dok. eng - angličtina Země vyd. DE - Německo Klíč. slova vocal folds ; flow separation ; physical model Vědní obor RIV BI - Akustika a kmity CEP KJB200760801 GA AV ČR - Akademie věd CEZ AV0Z20760514 - UT-L (2005-2011) UT WOS 000291889300009 DOI 10.1007/s00348-010-1031-9 Anotace The paper provides experimental data on flow separation from a model of the human vocal folds. Data were measured on a four times scaled physical model, where one vocal fold was fixed and the other oscillated due to fluid–structure interaction. The vocal folds were fabricated from silicone rubber and placed on elastic support in the wall of a transparent wind tunnel. A PIV system was used to visualize the flow fields immediately downstream of the glottis and to measure the velocity fields. From the visualizations, the position of the flow separation point was evaluated using a semiautomatic procedure and plotted for different airflow velocities. The separation point position was quantified relative to the orifice width separately for the left and right vocal folds to account for flow asymmetry. The results indicate that the flow separation point remains close to the narrowest cross-section during most ofthe vocal fold vibration cycle, but moves significantly further downstream shortly prior to and after glottal closure. 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 2012 Elektronická adresa http://www.springerlink.com/content/t81114611760jp23/
Počet záznamů: 1