Abonnement à la biblothèque: Guest
THMT-18. Turbulence Heat and Mass Transfer 9 Proceedings of the Ninth International Symposium On Turbulence Heat and Mass Transfer
July, 10-13, 2018, Rio de Janeiro, Brazil

DOI: 10.1615/THMT-18


ISBN Print: 978-1-56700-468-7

ISBN Online: 978-1-56700-467-0

ISSN Print: 2377-2816

Experimental study of thermal boundary layer in a dual cavity solar chimney

pages 451-460
DOI: 10.1615/THMT-18.450
Get accessGet access

RÉSUMÉ

Experiments are performed to measure the instantaneous temperature within the natural convection boundary layer developing within a dual-cavity solar chimney. Mean profiles of statistics do not indicate an obvious scaling length that could characterise the thermal boundary layer completely. The root-mean-square profiles of fluctuating temperature suggests that a length-scale could be obtained based on the peak r.m.s. location. However such a length scale results in collapse of profiles only adjacent to the heated surface. Further investigation is necessary at sufficiently high Rayleigh numbers (O(1011)) in order to determine appropriate length-scales in different regions of thermal boundary layer analogous to the inner and outer regions of a high-Reynolds number momentum boundary layer.

Portail numérique Bibliothèque numérique eBooks Revues Références et comptes rendus Collections Prix et politiques d'abonnement Begell House Contactez-nous Language English 中文 Русский Português German French Spain