Rotary slanted single wire CTA - a useful tool for 3D flows investigations

0386098 - ÚT 2013 RIV CZ eng C - Conference Paper (international conference)
Jonáš, Pavel
Rotary slanted single wire CTA - a useful tool for 3D flows investigations.
Experimental Fluid Mechanics 2012. Liberec: Technical University of Liberec, 2012 - (Vít, T.; Dančová, P.; Novotný, P.), s. 318-323. ISBN 978-80-7372-912-7.
[Experimental Fluid Mechanics 2012 /7./. Hradec Králové (CZ), 20.11.2012-23.11.2012]
R&D Projects: GA ČR GAP101/12/1271; GA ČR GA101/08/1112
Institutional support: RVO:61388998
Keywords : hot wire probe * constant temperature anemometer * 3D flow
Subject RIV: BK - Fluid Dynamics

The procedure is described of experimental investigation of a statistically stationary generally nonisothermal 3D flow by means of a constant temperature anemometer (CTA) using single slanted heated wire, rotary round the fixed axis. The principle of this procedure is quite clear. The change of the heated wire temperature modifies ratio of CTA sensitivities to temperature and velocity fluctuations. Turning the heated wire through a proper angle changes the sensitivity to components of the instantaneous velocity vector. Some recommendations are presented based on long time experiences, e.g. on the choice of probe, on the probe calibration, to the measurement organization and to the evaluation of results.
Permanent Link: http://hdl.handle.net/11104/0216912