Transient heat transfer coefficient on precooled circular cylinder at various reynolds numbers

0426111 - ÚTAM 2014 CZ eng V - Výzkumná zpráva
Král, Radomil - Beran, Pavel - Kuznetsov, Sergeii
Transient heat transfer coefficient on precooled circular cylinder at various reynolds numbers.
Telč: Ústav teoretické a aplikované mechaniky, 2013. 7 s.
Institucionální podpora: RVO:68378297
Klíčová slova: heat transfer * wind tunnel * Reynolds number
Kód oboru RIV: JM - Inženýrské stavitelství

In this work, the experimental investigation of unsteady averaged heat transport coefficient is carried out. Using precooled concrete circular cylinder being immersed into the air cross-flow at constant temperature level, the heat convection for various wind speed ranging from 5 to 15 m/s is determined. The attention is also given to the temperature distribution over the circular cross-section with respect the time evolution. Instantaneous energy lost is evaluated in average together with its distribution over the cylinder. The heat transfer effect expressed by the non-dimensional Nusselt numvber is identified and graphically interpreted.
Trvalý link: http://hdl.handle.net/11104/0232080