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Showing papers in "International Communications in Heat and Mass Transfer in 1983"


Journal ArticleDOI
TL;DR: In this article, the effect of a uniform transverse magnetic field on the free convection flow of an electrically conducting fluid past an infinite vertical plate for both the classes of impulsive as well as uniformly accelerated motion of the plate is discussed.

121 citations


Journal ArticleDOI
TL;DR: Bubble departure diameters have been correlated for water over a wide range of pressures and the averaged deviation of the experimental data from the proposed correlation is approximately ±33% and is typical of most boiling correlations as discussed by the authors.

110 citations


Journal ArticleDOI
TL;DR: In this article, a numerical investigation of the heat transfer from a rectangular fin by combined forced and natural convection is presented, and the results are compared with the conventional fin theory and it is found that concerning the fin efficiency, the latter produces acceptable results although it is not strictly correct.

35 citations


Journal ArticleDOI
TL;DR: In this paper, the results of flow visualization experiments in a rectangular test cell during the solidification of n-octadecane from above are reported, providing information on buoyancy-induced fluid motion and its effect on the shape and motion of the solid-liquid interface.

34 citations


Journal ArticleDOI
TL;DR: Theoretical justification for relating the values of nodal enthalpy in a discretised region undergoing a melting/freezing phase change to the rate at which the change of state occurs is given in this paper.

19 citations


Journal ArticleDOI
TL;DR: In this article, the Nusselt number modified for changes in the Prandtl number and bulk to wall viscosity ratio is related to the friction factor f and the Reynolds number.

19 citations


Journal ArticleDOI
TL;DR: In this paper, it was suggested that the use of the fluctuating velocity vector u i may yield a more meaningful comparison between turbulent Reynolds and Peclet numbers, and it was used to compare the two numbers.

12 citations


Journal ArticleDOI
TL;DR: In this paper, the role of gas/vapour mixture properties on the effective conductivity of thermal energy storage systems was investigated and it was shown that very large increases in effective conductivities are achievable.

12 citations


Journal ArticleDOI
TL;DR: An experimental and theoretical investigation was carried out to study the boiling and spreading of liquid nitrogen and liquid methane on water, in a one-dimensional configuration with the equations of continuity and momentum transfer, a mathematical model was developed to describe the boiling-spreading phenomena of cryogens spilled on water as mentioned in this paper.

11 citations


Journal ArticleDOI
TL;DR: In this article, an analytical study has been carried out to examine the effects of finite normal interfacial velocity on simultaneous heat and mass transfer rates in a laminar, free convection binary boundary layer along an inclined plate.

10 citations


Journal ArticleDOI
TL;DR: In this paper, empirical correlations for the friction factor and the dimensionless heat transfer coefficients are proposed as functions of the Reynolds and Weissenberg numbers, which can be used to determine the characteristic time of a dilute or highly degraded polymer solution with a simple pressure drop measurement.

Journal ArticleDOI
TL;DR: In this article, the problem of radiative heat transfer through a nonisothermal scattering, absorbing and emitting grey medium between reflecting, absorbing, and emitting plates is analytically investigated.

Journal ArticleDOI
TL;DR: In this paper, a new integral function has been discovered for computing the spectral emissivity of an isothermal volume containing either soot or gaseous species, or both.

Journal ArticleDOI
TL;DR: In this article, experimental investigations on the rewetting of hot horizontal annular channels were conducted at atmospheric pressure on stainless steel test section and the inner surface of the annular channel was varied from 200 to 500°C and the flow rate from about 0.7 kg/min.

Journal ArticleDOI
TL;DR: In this paper, the authors considered steady free convection and mass transfer through a porous medium bounded by an infinite vertical porous plate for a fluid rotating with a constant angular velocity when the heat flux at the plate is constant.


Journal ArticleDOI
TL;DR: In this paper, the authors have successfully developed a correlation on the basis of C-S method, which has been found to give better agreement than an earlier reported method based on M-N correlation.

Journal ArticleDOI
TL;DR: In this article, a bayonet tube-fluidized bed system is mathematically modelled, and an analytical scheme is presented for the calculation of the bed-tube heat transfer coefficient.

Journal ArticleDOI
TL;DR: In this paper, the heat balance integral method was applied to solve the problem of melting a semi-infinite slab with a prescribed flux on the fixed face, and a satisfactory approximate solution considering the results in [2] was obtained.

Journal ArticleDOI
TL;DR: In this paper, a model is developed which predicts that the entrainment is suppressed by the second phase of the mixing characteristics of a turbulent free air jet is affected by particles.

Journal ArticleDOI
TL;DR: In this article, the problem of a cylinder of infinite length heated by way of a transient torsional vibration of variable amplitude is investigated and an expression of the maximum surface temperature is obtained.

Journal ArticleDOI
TL;DR: In this paper, the length and velocity scales of the turbulent eddies at the surface of a steam-chugging bubble (the detached bubble) were derived from a physical model, and the corresponding turbulent heat transfer result, which contains no free parameters, is Nu = 0.04 Re 7 8 Pr 1 2.

Journal ArticleDOI
TL;DR: In this paper, a theoretical analysis of direct contact latent heat transfer between two immiscible liquids in a counterflow spray column is presented, where the non-dimensional parameters governing the evaporation process are identified and a study of the effects of the variation of these parameters is made.

Journal ArticleDOI
TL;DR: In this paper, heat transfer by a natural convection in a vertical porous layer heated from below and cooled from above is studied analytically, and the normal mode technique is used to find the criteria for the onset of convection and it is shown that convection sets in when the cirtical Reyleigh number exceeds 2.

Journal ArticleDOI
TL;DR: In this article, the water side heat transfer coefficients without air flow from a single horizontal tube are determined and the total energy dissipated by inside hot fluid when only water is falling is compared with that when both the air and water flow past the tube.

Journal ArticleDOI
TL;DR: In this paper, an unsteady flow of a dusty fluid, filling the gap between two infinite parallel plates kept at arbitrary temperatures, has been considered and the flow is induced by the impulsive start of one of the plates.

Journal ArticleDOI
TL;DR: In this article, the characteristic time of viscoelastic fluids can be determined by a simple pressure drop measurement, and the basis for the proposed method is presented, but more detailed measurements are required to validate the procedure.

Journal ArticleDOI
TL;DR: In this article, the authors considered steady free convection flow through a porous medium bounded by two horizontal walls with a uniform axial temperature variation along the walls and gave an analytical solution of the velocity field and discussed the effects of the permeability parameter K and Grashof number G on the velocity.

Journal ArticleDOI
TL;DR: In this paper, a simple and widely applicable correlation for the estimation of binary gas phase diffusion coefficient has been developed, which is easier to use in comparison with other correlations available which need parameters and factors not known for many substances and therefore need experimental determination first.

Journal ArticleDOI
TL;DR: In this paper, a novel temperature measurement technique integrated with a high-speed data acquisition system allowed temperature distributions to be obtained in droplets rising in a liquid-liquid, direct-contact heat exchanger.