Showing papers in "Letters in Heat and Mass Transfer in 1974"

TL;DR: For glass particles in dimethyl phthlate, the relation between Stanton number (St) and voidage (e) is log(St)−1 = 1.95e + K, where K is a function of particle size as discussed by the authors.

TL;DR: In this paper, the nominal and actual length of the potential core of an axi-symmetric jet have been determined experimentally and estimated analytically, and the analysis based on similar solutions shows that the nominal potential core length is proportional to the Reynolds number in the laminar region, and it is independent of the Reynolds numbers in the turbulent region.

TL;DR: In this paper, the authors studied the free-convective heat transfer from slender cylinders subject to uniform wall heat flux and solved the boundary-layer equations by an efficient numerical method described in reference.

TL;DR: In this article, experimental measurements of the liquid side mass transfer coefficient were reported for CO2 absorption into a turbulent falling water film at 25°C with co-current gas flow.

TL;DR: In this article, a relationship is empirically developed between the effect upon heat transfer of freestream turbulence and of surface roughness, which is useful by itself as well as leading to a comprehensive theory that includes both effects.

TL;DR: In this paper, a procedure is suggested by which the experimental data for one tube diameter may be extrapolated to other diameters, and data represented in terms of C F vs Re and C H vs Re, Pr will then be applicable to a particular tube diameter only.

TL;DR: In this paper, a complete two-dimensional mathematical model has been developed to predict the flow and mixing pattern, the heat release pattern and the temperature and heat flux distribution in a pulverised fuel furnace.

TL;DR: In this paper, the time dependent temperature distribution for a fluid flowing in a tube is obtained for laminar and fully developed fluid flow and the fluid properties are assumed to be constant.

TL;DR: In this paper, the authors deal with the following urgent problems on the theory of heat and mass transfer; heat transfer by conduction in the materials with memory; heat conduction with phase conversion when transfer coefficients and thermodynamic properties very spasmodically.

TL;DR: In this article, experimental installation for investigation of thermal conductivity, thermal diffusivity and heat capacity of constructional glass-fibre materials is described in short for the temperature range from 10 to 400°K.

TL;DR: For condensation inside horizontal smooth and finned tubes, the equivalent f and J factors can be employed to correlate the pressure drop and heat transfer performance, respectively as discussed by the authors, and they are empirically found to be feqfl0-8Reeq -0"2 and Jeq=0.045 Reeq -0.2 where Reeq is the equivalent Reynolds number.

TL;DR: In this article, measured and predicted values of adiabatic wall effectiveness for multi-slot film cooling are compared and shown to be in close agreement, and further calculations are presented to demonstrate that the longitudinal spacing of the slots can be optimized to result in a minimum number of slots and coolant mass-flow requirement.