TEMPERATURE DISTRIBUTIONS WITHIN ENCLOSED PLANE AIR CELLS ASSOCIATED WITH HEAT TRANSFER BY NATURAL CONVECTION

Publisher Website
Google Scholar
Abstract
The temperature fields associated with natural convection heat transfer within enclosed plane air cells with diabatic vertical walls have been studied using a Mach Zehnder interferometer. From the information thus obtained the heat transfer coefficients have been determined on the vertical walls. The average values have been correlated by a relationship of the form Nu = Nu (Ra, A) where Nu is the Nusselt number Ra is the Rayleigh number and A is the cell aspect ratio (height/width). A variety of cell sizes was used giving a range of Rayleigh number, 103 < Ra < 6.5 × 105 and a range of aspect ratio, 1.25 < A < 20. Within these ranges of the variable5Ra and A there were distinct regimes of characteristic temperature distribution. The findings regarding these regimes and the associated heat transfer coefficients will be discussed in detail.

This publication has 0 references indexed in Scilit: