Nagendra, HR and Tirunarayanan, MA (1971) Free convection heat transfer between vertical parallel plates. In: Nuclear Engineering and Design, 15 . pp. 17-28.
free.pdf - Published Version
Restricted to Registered users only
Download (698Kb) | Request a copy
A new mathematical model for the solution of the problem of free convection heat transfer between vertical parallel flat isothermal plates under isothermal boundary conditions, has been presented. The set of boundary layer equations used in the model are transformed to nonlinear coupled differential equations by similarity type variables as obtained by Ostrach for vertical flat plates in an infinite fluid medium. By utilising a parameter ηw* to represent the outer boundary, the governing differential equations are solved numerically for parametric values of Pr = 0.733. 2 and 3, and ηw* = 0.1, 0.5, 1, 2, 3, 4, ... and 8.0. The velocity and temperature profiles are presented. Results indicate that ηw* can effectively classify the system into (1) thin layers where conduction predominates, (2) intermediate layers and (3) thick layers whose results can be predicted by the solutions for vertical flat plates in infinite fluid medium. Heat transfer correlations are presented for the 3 categories. Several experimental and analytical results available in the literature agree with the present correlations.
|Item Type:||Journal Article|
|Additional Information:||Copyright of this article belongs to Elsevier B.V.|
|Department/Centre:||Division of Mechanical Sciences > Mechanical Engineering|
|Date Deposited:||11 Jun 2010 10:23|
|Last Modified:||19 Sep 2010 06:08|
Actions (login required)