Library Subscription: Guest
Proceedings of CHT-08 ICHMT International Symposium on Advances in Computational Heat Transfer
May, 11-16, 2008, Marrakesh, Morocco

DOI: 10.1615/ICHMT.2008.CHT


ISBN Print: 978-1-56700-253-9

ISSN: 2578-5486

NUMERICAL AND EXPERIMENTAL ANALYSIS OF THE VALIDATION OF THE F.J.O. THEORY

page 7
DOI: 10.1615/ICHMT.2008.CHT.2310
Get accessGet access

ABSTRACT

In this paper, the limits of the validity of the FJO theory has been studied both numerically and experimentally. The commercial Solver Fluent® (Fluent Inc.) has been used in this study, as a computational fluid dynamics (CFD) tool. It was used in order to simulate the variation of the steady separation that will take place in a thermogravitational column over a wide range of the product Grashof by Schmidt. The thermogravitational method is used for determining experimentally the thermal diffusion coefficient of binary mixtures, from measures of the separation reached in the stationary state, between the top and the bottom parts of the column. For this study, one of these columns was used to determine the separation of two mixtures of polystyrene diluted in toluene. Both the numerical and experimental results show the validity of the FJO theory, whenever the work conditions satisfy the relation: Gr ·Sc ≤ 1000·A, where A is the aspect ratio between the height of the thermogravitational column and the work gap (annular space): A = L/d.

Begell Digital Portal Begell Digital Library eBooks Journals References & Proceedings Research Collections Prices and Subscription Policies Begell House Contact Us Language English 中文 Русский Português German French Spain