Preliminary results of the conditional analysis of wall friction during laminar-turbulent transition of a rough wall boundary layer

0384370 - ÚT 2013 RIV DE eng J - Článek v odborném periodiku
Jonáš, Pavel - Hladík, Ondřej - Mazur, Oton - Uruba, Václav
Preliminary results of the conditional analysis of wall friction during laminar-turbulent transition of a rough wall boundary layer.
Proceedings in Applied Mathematics and Mechanics. Roč. 12, č. 1 (2012), s. 467-468. ISSN 1617-7061.
[Annual Meeting of the International Association of Applied Mathematics and Mechanics /83./. Darmstadt, 26.03.2012-30.03.2012]
Grant CEP: GA ČR GAP101/10/1230; GA ČR GAP101/12/1271
Výzkumný záměr: CEZ:AV0Z20760514
Klíčová slova: laminar/turbulent transition * wall friction * rough wall * boundary layer
Kód oboru RIV: BK - Mechanika tekutin
http://onlinelibrary.wiley.com/doi/10.1002/pamm.201210222/abstract

The conditional analysis of the instantaneous wall friction is applied on time records made in transitional boundary layers originating on smooth surface or surface covered by sand paper (grits 60) under turbulent free stream. The applied intermittency analysis of measurement allowed the evaluations of turbulent and non-turbulent zone averages.
Trvalý link: http://hdl.handle.net/11104/0214052