Free convective turbulent flow within the trombe wall channel

Abstract A study of free convective turbulent heat transfer between parallel plates has been made. The initial flow is assumed to remain laminar until a combination of geometry, temperature, and flow rate conditions reach a pre-defined level. At this point the model used in this study assumes transition and permits laminar flow to gradually develop into fully turbulent flow. Turbulent flow characteristics are predicted by a mixing length model which incorporates empirical parameters used in the literature. Using air as the fluid, a wide range of channel geometries, relative surface temperatures, and flow rates have been examined. Guided by the very limited available experimental data, computations were made and several correlations were developed to enable important quantities to be estimated given the channel geometry, surface temperatures, and inlet air temperature.

[1]  H. Meier,et al.  Experimental and theoretical investigations of temperature distributions in supersonic boundary layers , 1970 .

[2]  A. Akbarzadeh,et al.  Thermocirculation characteristics of a Trombe wall passive test cell , 1982 .

[3]  H. Akbari,et al.  Free convective laminar flow within the Trombe wall channel , 1978 .

[4]  D. Spalding,et al.  Heat and Mass Transfer in Boundary Layers. 2nd edition. By S. V. PATANKAR and D. B. SPALDING. Intertext Books, 1970. 255 pp. £6. , 1971, Journal of Fluid Mechanics.

[5]  B. Gebhart,et al.  An experimental study of the transition of natural convection flow adjacent to a vertical surface , 1974 .

[6]  W. Kays,et al.  Heat transfer in annular passages—hydrodynamically developed turbulent flow with arbitrarily prescribed heat flux , 1963 .

[7]  Robert Cheesewright,et al.  Turbulent natural convection from a vertical plane surface , 1968 .

[8]  J. Whitelaw,et al.  Convective heat and mass transfer , 1966 .

[9]  G. C. Vliet,et al.  An Experimental Study of Turbulent Natural Convection Boundary Layers , 1969 .

[10]  Tuncer Cebeci,et al.  A Model for Eddy Conductivity and Turbulent Prandtl Number , 1973 .

[11]  Nishiwaki Niichi,et al.  On the turbulent heat transfer by free convection from a vertical plate , 1968 .

[12]  J. Brunn.  Energy the biomass option: Henry R. Bungay, Wiley Interscience, New York, 1981 , 1982 .

[13]  G. Lock,et al.  Observations on the structure of a turbulent free convection boundary layer , 1968 .

[14]  A. Hatton,et al.  The effect of axially varying and unsymmetrical boundary conditions on heat transfer with turbulent flow between parallel plates , 1963 .

[15]  C. Y. Warner,et al.  AN EXPERIMENTAL INVESTIGATION OF TURBULENT NATURAL CONVECTION IN AIR AT LOW PRESSURE ALONG A VERTICAL HEATED FLAT PLATE , 1968 .

[16]  R. A. Seban,et al.  Numerical predictions for turbulent free convection from vertical surfaces , 1974 .

[17]  E. Eckert,et al.  Analysis of turbulent free-convection boundary layer on flat plate , 1951 .

[18]  E. R. V. Driest.  On Turbulent Flow Near a Wall , 1956 .