ISSN Online: 2377-424X
ISBN Print: 0-89116-559-2
International Heat Transfer Conference 8
HEAT/MASS TRANSFER BENEATH A TWO-DIMENSIONAL WALL-JET DEFLECTED BY A NORMAL, FLAT-PLATE OBSTRUCTION
Résumé
Experimental measurements are reported of the local mass transfer distribution beneath a wall-jet emanating from a linear slot, which is deflected by a normal, flat-plate obstruction. This configuration was adopted to simulate the effect of wall-jet impingement on downstream backward - facing walls, such as occur in mechanically-ventilated enclosures. The mass transfer data was derived from the sublimation of a naphthalene thin-film on the blown surfaces. These measurements are compared with the computations of the 'intermediate-level' convection model of Alamdari and Hammond (1982) and the high- level 'elliptic' finite-domain flow model of Pun and Spalding (1977). Wall-jet profile analysis is used to aid the specification of the boundary conditions for passive scalar contaminants in these models, and to provide a rigorous expression for the heat/mass transfer analogy factor.