Showing papers in "International Communications in Heat and Mass Transfer in 1999"

TL;DR: In this article, the effects of viscous dissipation and stress work on the MHD forced convection adjacent to a nonisothermal wedge is numerically analyzed using the Keller box method.

TL;DR: In this article, the steady flow of an elastico-viscous fluid by the presence of radiation is considered and a numerical solution for the temperature field is obtained, where the temperature profiles are shown graphically for different values of the radiation parameter.

TL;DR: In this article, an extensive experimental investigation on the velocity of rise of air bubbles in the size range db = 3 - 80 mm in water was carried out and the column diameter was found to have a significant effect on the rise velocity of the bubbles.

TL;DR: In this paper, the authors attempted to simulate the rise trajectories of gas bubbles of 4, 5, 7, 8, 9, 12, and 20 mm in diameter rising in a 2D rectangular column filled with water.

TL;DR: In this paper, various factors influencing the regime transition point in gas-liquid bubble columns are examined in a qualitative way by the correlations of Reilly [1] and Wilkinson [2] of which the Reilly correlation is found to be more accurate.

TL;DR: In this paper, numerical solutions are presented for the effect of radiation on natural convection about an isothermal vertical cylinder embedded in a saturated porous medium, where partial differential equations are transformed into nonsimilar boundary layer equations which are solved by an implicit finite-difference method.

TL;DR: In this paper, the free convection effect on magnetohydrodynamic heat and mass transfer of a continuously moving permeable vertical surface was considered and the similar equations were solved by using a suitable variable transformation and employing an implicit finite difference method.

TL;DR: In this paper, a simple approach for evaluating the effect of wall suction and thermophoresis on aerosol particle deposition from a laminar flow over a flat plate is proposed.

TL;DR: In this paper, the effect of viscous and Joule heating on MHD-free convection flow with a variable plate temperature in a micropolar fluid in the presence of uniform transverse magnetic field was studied.

TL;DR: In this paper, an analysis of a crossflow plate-fin compact heat exchanger, accounting for the combined effects of two-dimensional longitudinal heat conduction through the exchanger wall and non-uniform inlet fluid flow and temperature distribution is carried out using a finite element method.

TL;DR: In this article, a numerical study of lanunar natural convection flow from an array of two horizontal isothermal cylinders is presented, which involves the use of a control-volume method and solves the full vorticity transport equation together with the stream function and energy equations.

TL;DR: In this paper, new mechanisms for convection instabilities in evaporating liquid layers are described from a physical viewpoint, and modified Marangoni and Rayleigh numbers are proposed to gauge the convection stability status in both evaporating layers and in liquid layers heated from below without evaporation.

TL;DR: In this paper, the authors describe selected food thermophysical property models and evaluate their performance by comparing their results to experimental thermophysical properties data and conclude that the results given in this paper will be of value to the design engineer in the selection of appropriate food thermophysics property models.

TL;DR: In this paper, a new similarity solution for the problem of free convection boundary layer over vertical and horizontal surfaces which are embedded in a porous medium is reported, which is valid for a fluid-porous medium with an exponential decaying heat generation term and wall temperature distribution proportional to x{sup {lambda}}.

TL;DR: In this article, the influence of pressure drops on the behavior of a single-phase natural circulation loop was investigated in a simple rectangular loop (MTT-1) located at DITEC, with localized pressure drops (orifices of 6 mm, 10 mm and 14 mm diameter in the vertical legs) and different power levels.

TL;DR: In this paper, the effects of scattering albedo, forward fraction of phase function, and wall emissivity on radiative heat transfer in three-dimensional nonhomogeneous participating medium was investigated by using REM 2 method.

TL;DR: In this paper, a stochastic finite element analysis of the transient heat transfer in composite materials is presented, which is based on the second order perturbation second central probabilistic moment method.

TL;DR: In this article, the authors used the discrete ordinates method to develop a solution to an inverse radiation problem of temperature field in rectangular furnaces, assuming that, with the exception of the inhomogeneous temperature field, all aspects of the radiation transport problem are known.

TL;DR: In this article, the authors deal with natural convection heat and mass transfer from vertical plates embedded in electrically conducting fluid saturated porous media with constant surface temperature and concentration, where the flow is exposed to a transverse magnetic field.

TL;DR: In this article, two types of heat pipes were studied experimentally using water as a working fluid, one with a wick and another with no wick, and the wick was made of cotton, which is normally used in oil lamps.

TL;DR: In this paper, a new approach is suggested to enhance boiling heat transfer through the introduction of unusual surface tension effects, such as the Marangoni effect around the bubble surface, which will not impede the bubble detachment from the heater surface but rather will provide an additional driving force for the bubble departure.

TL;DR: In this paper, the experimental results of natural convection in a rectangular cross-sectional vertical channel are presented, where along the channel fins connected to both plates, periodically, the channel walls are maintained at uniform heat flux.

TL;DR: In this paper, the mixed convective heat transfer about a cone embedded in a saturated porous medium is numerically investigated, where the surface of the cone is maintained at variable wall temperature (VWT) or variable heat flux (VHF).

TL;DR: In this paper, a performance comparison analysis of vapour-compression refrigeration systems using refrigerant HFC134a and CFC12 is presented based on computer simulation of actual cycles rather than the ideal cycles.

TL;DR: In this paper, a stream function-vorticity formulation representing the laws of conservation in mass, momentum, and energy in terms of a curvilinear coordinate is solved numerically.

TL;DR: In this paper, a numerical investigation into two-dimensional transient natural convection of single-phase fluids inside a completely filled square enclosure has been conducted for the Prandd numbers of 0.71 and 7.1, and the Rayleigh number range 10 3 −10 7.

TL;DR: In this article, the heat and mass transfer characteristics of free convection about a permeable horizontal cylinder embedded in porous media under the coupled effects of thermal and mass diffusion are numerically analyzed.

TL;DR: In this paper, an analysis is made for the steady free convection boundary-layer flow near the stagnation point of a two-dimensional body which is embedded in a porous medium by adopting a two temperature model of microscopic heat transfer and it is found that such a model modifies substantially the behaviour of the flow characteristics, particularly those of the heat transfer coefficients, and the region over which the thermal fields extend.

TL;DR: In this paper, experiments were carried out on a bubble absorber operating as part of a vapour absorption refrigeration system working with HCFC22-DMF to obtain heat and mass transfer and pressure drop data.