Kaiser, Robert;
Du Puits, Ronald;
Local wall heat flux in confined thermal convection. - In: International journal of heat and mass transfer, ISSN 1879-2189, Bd. 73 (2014), S. 752-760
https://doi.org/10.1016/j.ijheatmasstransfer.2014.02.033
Local wall heat flux in confined thermal convection. - In: International journal of heat and mass transfer, ISSN 1879-2189, Bd. 73 (2014), S. 752-760
We report highly resolved measurements of the local wall heat flux in turbulent Rayleigh-Bénard convection using an infrared camera. The measurements have been undertaken in a Rayleigh-Bénard cell with rectangular base of 2.50 m x 0.65 m and a height of 2.5 m which is filled with air. First of all, it could be demonstrated that in a Rayleigh-Bénard cell with rectangular cross-section the time-averaged wall heat flux locally deviates by 30% from its mean. Furthermore, a strong correlation between the global flow structure inside the cell and the distribution of the local wall heat flux could be identified.
https://doi.org/10.1016/j.ijheatmasstransfer.2014.02.033
Schmerling, Daniel; Bosbach, Johannes; Wagner, Claus
Simultaneous measurement of temperature and velocity fields in convective air flows. - In: Measurement science and technology, ISSN 1361-6501, Bd. 25 (2014), 3, S. 035302, insges. 16 S.
http://dx.doi.org/10.1088/0957-0233/25/3/035302
Simultaneous measurement of temperature and velocity fields in convective air flows. - In: Measurement science and technology, ISSN 1361-6501, Bd. 25 (2014), 3, S. 035302, insges. 16 S.
http://dx.doi.org/10.1088/0957-0233/25/3/035302
du Puits, Ronald; Kaiser, Robert; Rilk, Johannes; Thess, André
Turbulent Rayleigh-Bénard convection in air: how uniform is the local wall heat flux at finite aspect ratio?. - In: Progress in turbulence V, (2014), S. 149-152
Turbulent Rayleigh-Bénard convection in air: how uniform is the local wall heat flux at finite aspect ratio?. - In: Progress in turbulence V, (2014), S. 149-152
Schiepel, Daniel; Bosbach, Johannes; Wagner, Claus
Tomographic particle image velocimetry of turbulent Rayleigh-Benard convection in a cubic sample. - In: Journal of flow visualization and image processing, ISSN 1940-4336, Bd. 20 (2013), 1/2, S. 3-23
https://doi.org/10.1615/JFlowVisImageProc.2014010441
Tomographic particle image velocimetry of turbulent Rayleigh-Benard convection in a cubic sample. - In: Journal of flow visualization and image processing, ISSN 1940-4336, Bd. 20 (2013), 1/2, S. 3-23
https://doi.org/10.1615/JFlowVisImageProc.2014010441