Showing papers in "International Journal of Heat and Mass Transfer in 1965"

TL;DR: In this paper, it was shown that some seemingly anomalous heat transfer phenomena can be explained as effects of the intense and spatially varying turbulence inherent in jets, which can be used to explain the heat transfer properties of impinging jets.

TL;DR: In this article, a criterion for bubble initiation from a gas filled cavity on a surface in contact with a superheated layer of liquid was developed, and it was found that the temperature of bubble initiation on a given surface is a function of the temperature conditions in the liquid surrounding the cavity as well as the surface properties themselves.

TL;DR: In this paper, the effect of curvature on flow resistance and heat transfer in a laminar flow in a curved pipe has been investigated under the condition of uniform heat flux at large Dean numbers and Prandtl numbers.

TL;DR: In this article, the authors studied a two-layer system in which the temperature difference is maintained by heating continuously from below and showed that the potential energy change of the top layer due to the lifting of salt is a constant fraction of that released by the transfer of heat.

TL;DR: Radiative heat transfer through nonisothermal absorbing and emitting gray gas between heated walls as mentioned in this paper was used to transfer radiative heat from non-isothermal absorb and emit gray gas.

TL;DR: In this article, experimental data were presented for heat transfer to an essentially constant property turbulent boundary layer for various rates of free-stream acceleration, and a limited amount of data for free stream deceleration was also presented.

TL;DR: In this paper, measurements of heat flux and steam-side temperature difference during dropwise condensation on plane vertical surfaces are reported, and the results are considered to have enhanced precision and, in particular their relation to earlier work supports the view that the effects of noncondensables have been avoided.

TL;DR: In this paper, the individual processes of bubble nucleation, growth and departure described in detail in Part I of this paper are used to predict the heat flux-temperature difference relation for one particular boiling experiment.

TL;DR: In this paper, the surface temperature during dropwise condensation of steam at atmospheric pressure on copper surfaces promoted by montan wax, over the heat flux range 10 000-200 000 Btu/ft2h.

TL;DR: In this article, the authors determine the coefficients d'echange thermique dans un tube circulaire et horizontal avec du NaK (44 % Na-56 % K) en regime permanent, thermiquement et hydrodynamiquement, a flux de chaleur constant (q/Amax = 16 W/cm2), pour des valeurs du nombre de Reynolds de 3,6.103 a 9,05.101 a 1,31.104 (domaine particulierement etendu).

TL;DR: In this paper, the thermal conductivity of nickel was determined on five samples of nickel, two from 323°K to 1100°K and 1300°K, two to 800°k and one to 600°K.

TL;DR: For constant wall-temperature, constant heat flux and a linear increasing wall temperature, the temperature profiles were numerically computed as a function of the tube length, with greater accuracy than achieved hitherto as discussed by the authors.

TL;DR: In this article, a generalized orthogonalization method was used to trace out the freezing process, taking the pressure dependence of freezing temperature also into account, on the basis of incompressible inviscid fluid dynamics.

TL;DR: In this article, temperature distributions were measured in steady state in packed beds of solid particles with stagnant fluids, from which both the effective thermal conductivities and the apparent wall-film coefficients of heat transfer were obtained.

TL;DR: In this paper, the results of an experimental investigation of heat transfer by forced convection from a cylinder to water in crossflow in the range of Reynolds numbers from approximately 104 to 105 were presented.

TL;DR: In this paper, a correlation is made of heat-transfer data for circular cylinders of high thermal conductivity in the Reynolds number range 2 × 10-2 0.2 for free-molecule flow energy accommodation coefficient near unity.

TL;DR: In this article, an implicit finite difference scheme is developed for solving the problem of laminar flow of gases in heated (or cooled) circular tubes with an unheated entrance section, under conditions where large variations of gas properties occur.

TL;DR: In this article, a variety of different evaporation regimes were identified for the steady vaporization of a radiantly heated spherical particle, and the vaporization rate was obtained in many of these regimes.

TL;DR: In this paper, the effects of variations in specie enthalpy, thermal conductivity, viscosity and density with concentration were studied individually and in various combinations for free convection in laminar boundary layers with coupled momentum, heat and binary mass transfer.

TL;DR: An orthogonal expansion technique for solving some heat or mass-transfer problems in counterflow systems is developed and applied to two idealized transport problems as discussed by the authors, and the method of solution is based on Sturmian theory and requires both positive and negative eigenvalues for completeness.

TL;DR: In this paper, a method of analysis has been devised for determining the radiant interchange among surfaces, each of which may have both specular and diffuse reflectance components, and specific analytical and numerical consideration is given to radiant interchange in cylindrical and conical cavities and to radiant transport through a circular tube.

TL;DR: In this paper, the authors derived an equation relating the optimum dimensions of uniform annular fin to the heat transfer and thermal properties of the fin and the heat-transfer coefficient between fin and coolant.

TL;DR: In this paper, the Hartley-Murgatroyd force criterion for the stability of a dry patch is modified as a consequence of recent experimental results and the role of shear and form forces is examined and it is shown that the experimental results can be explained in a selfconsistent manner by assuming that contact angles measured under static conditions are applicable to the flowing film.

TL;DR: In this article, the authors investigated the breakdown of liquid films in air-water annular flow and showed that the films can exist in a metastable state and will not break down unless there is an external disturbance.

TL;DR: In this article, a study of heat transfer in dropwise condensation in relation to surface chemistry showed that the steamside heat-transfer coefficient increased in the promoter series dibenzyl disulphide.

TL;DR: In this article, the effect of different flow patterns on the gas temperature field and wall-flux distribution in a cylindrical furnace has been examined by use of the following flow models: plug flow ; parabolic velocity profiles ; ducted-jet flow (axial feed) with recirculation rates of 0, 1, and 11 times the flue-gas flow rate.

TL;DR: In this paper, the authors show an Anteil der Strahlung am Warmetransport durch ein absorbierendes Medium, das sich zwischen zwei emittierenden and reflektierende parallelen Platten befindet, is durch den Mittelwert der durch Strahlsung bewirkten Warmestromung zwyshen den Plattenoberflachen gegeben.

TL;DR: In this paper, the authors solved the heat transfer problem of a discontinuous change in wall temperature and found that the limiting Nusselt number Nu∞ increases linearly with the suction Reynolds number.

TL;DR: In this paper, the effects of high-intensity ultrasonic vibrations on heat transfer to water flowing in annuli were investigated and the results showed that the maximum local increase in heat transfer coefficient of 40 per cent occurred with low flow velocities and high heat-flux nonboiling conditions.