Počet záznamů: 1
Modification of an algebraic bypass-transition model in region near the stagnation point
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SYSNO ASEP 0361276 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV D - Článek ve sborníku Název Modification of an algebraic bypass-transition model in region near the stagnation point Tvůrce(i) Straka, P. (CZ)
Příhoda, Jaromír (UT-L) RID, ORCIDCelkový počet autorů 2 Zdroj.dok. Conference Topical Problems of Fluid Mechanics 2011. - Prague : Institute of Thermomechanics AS CR, v. v. i., 2011 / Příhoda J. ; Kozel K. - ISBN 978-80-87012-32-1 Rozsah stran s. 105-108 Poč.str. 4 s. Akce Topical Problems of Fluid Mechanics 2011 Datum konání 16.02.2011-17.02.2011 Místo konání Praha Země CZ - Česká republika Typ akce EUR Jazyk dok. eng - angličtina Země vyd. CZ - Česká republika Klíč. slova bypass transition modelling ; k-omega turbulence model ; flow near the stagnation point Vědní obor RIV BK - Mechanika tekutin CEP GAP101/10/1329 GA ČR - Grantová agentura ČR CEZ AV0Z20760514 - UT-L (2005-2011) Anotace An algebraic model of bypass transition was applied for the numerical simulation of flow over the NACA 0012 airfoil. The system of governing equations is formed by the averaged Navier-Stokes equations closed by the k-omega turbulence model. The intemittent character of the transitional flow is described by the algebraic relation for the intermittency coefficient and by empirical relations for the onset and the length of the transition region. The constitutive relation for the turbulent velocity was modified to improve the prediction near the wall and near the leading edge. The prediction of transitional flow was carried out for the Reynolds number Re = 6x10^5 and free stream turbulence Tu = 0.3%. The agreement of numerical results with experimental data is quite good. 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
Počet záznamů: 1