Complex Effects of Free Stream Turbulence and Surface Roughness on the Transitional Intermittency

0389077 - ÚT 2013 RIV SK eng J - Článek v odborném periodiku
Hladík, Ondřej - Jonáš, Pavel - Mazur, Oton - Uruba, Václav
Complex Effects of Free Stream Turbulence and Surface Roughness on the Transitional Intermittency.
Komunikácie. Roč. 14, 4a (2012), s. 47-52. ISSN 1335-4205
Grant CEP: GA ČR GAP101/12/1271
Výzkumný záměr: CEZ:AV0Z20760514
Klíčová slova: by-pass transition * rough wall boundary layer * CTA anemometry * instantaneous wall friction * intermittency analysis
Kód oboru RIV: BK - Mechanika tekutin

The comparsion of transitional intermittency distributions in boundary layers on smooth and rough surface is presented. The conditional analysis of the instataneous wall friction is applied on time records made in transitional boundary layers originating on smooth surface or surface covered by sand paper. Special procedures of measurement and evaluation are applied that allowed evaluations of turbulent and non-turbulent zone averages.
Trvalý link: http://hdl.handle.net/11104/0218003