CTA Measurement of Longitudinal Velocity Fluctuation and ITS Spectra in Thermal Convection Atmosphere and Lee-Wawe Condition Using Sailplane in-Flight Experiment

0427863 - ÚT 2015 RIV CZ eng C - Konferenční příspěvek (zahraniční konf.)
Popelka, Lukáš - Matějka, Milan - Zelený, L. - Uruba, Václav
CTA Measurement of Longitudinal Velocity Fluctuation and ITS Spectra in Thermal Convection Atmosphere and Lee-Wawe Condition Using Sailplane in-Flight Experiment.
Topical Problems of Fluid Mechanics 2014. Praha: Ústav termomechaniky AV ČR, v. v. i., 2014 - (Šimurda, D.; Bodnár, T.), s. 105-108. ISBN 978-80-87012-51-2.
[Topical Problems of Fluid Mechanics 2014. Praha (CZ), 19.02.2014-21.02.2014]
Grant CEP: GA MŠMT(CZ) 1M06031; GA ČR GAP101/10/1230
Institucionální podpora: RVO:61388998
Klíčová slova: turbulent features of atmosphere * CTA * sailplane flight environment
Kód oboru RIV: BK - Mechanika tekutin

Two typical environments of large scale turbulent mixing in lower troposphere section were studied using sailplane in-flight experiment. Key properties, such as intensity and spectra were measured, indicating vortices decay into the smaller scales. In both cases, identified spectra extend above 1 kHz, hence containing disturbances capable to influence transition of laminar boundary layer to turbulence on sailplane (aircraft) wing.
Trvalý link: http://hdl.handle.net/11104/0235407