Showing papers in "International Communications in Heat and Mass Transfer in 2002"

TL;DR: In this article, the average in-tube heat transfer coefficients in a spiral-coil heat exchanger are investigated under dehumidifying conditions and the results from the experiments are compared with those calculated from correlations reported in literature.

TL;DR: In this paper, the effect of maximizing power density on the performance of the cycle efficiency is discussed. And the results obtained from this work can be helpful in the thermodynamic modeling and in evaluation of Miller engines over Atkinson and Joule-Brayton engines.

TL;DR: In this article, the steady laminar free convection boundary layer flow over an isothermal sphere in a micropolar fluid is considered and the governing boundary layer equations are first transformed into a non-dimensional and the resulting nonlinear system partial differential equations are then solved numerically using the Keller-box method.

TL;DR: In this paper, the heat transfer on tandem cylinders, inline and staggered geometries in cross flow of air is investigated for different geometry and flow conditions, and the Finite Element method is used to solve Navier-Stokes and energy equations.

TL;DR: In this paper, an approximate numerical solution for the steady MHD laminar boundary-layer flow over a wall of the wedge with suction or injection in the presence of species concentration and mass diffusion has been obtained by solving the governing equations using R.K.Gill method.

TL;DR: In this article, transient heat conduction in a strip of a functionally graded material (FGM) with continuous and piecewise differentiable properties was studied, where a multi-layered material model was used to obtain the Laplace transforms of temperatures at the interfaces between the layers.

TL;DR: In this article, a closed form of analytical solutions by solving the simplified governing equations in cylindrical coordinates is obtained to obtain expressions for local and average entropy generation in the annular space.

TL;DR: In this article, numerical simulations of three-dimensional micro-injection molding are performed using control volume finite element method and the results show that the mold temperature is the most important factor on process parameters.

TL;DR: In this article, a simplified heat and mass transfer model was used to simulate the drying kinetics of microwave assisted convective drying in a fluidized bed with microwave energy, and the resulting equations were solved with an implicit finite difference scheme.

TL;DR: An analytical study of the performance and optimization of a cooling and dehumidifying straight taper longitudinal fin has been carried out as discussed by the authors, where fin effectiveness and fin efficiency for various thermo-geometric parameters have been calculated.

TL;DR: In this article, the inherent irreversibility of fluid flow and heat transfer for non-Newtonian fluids in a pipe and a channel made of two parallel plates is investigated in terms of local and average entropy generation.

TL;DR: In this paper, the steady laminar free convection boundary layer flow over an a sphere with a surface heat flux placed in a micropolar fluid was considered, and the governing boundary layer equations were first transformed into a non-dimensional form and the resulting nonlinear system of partial differential equations were then solved numerically using the Keller-box method.

TL;DR: In this article, the authors numerically study the growth, rise and interaction with the upper air-water interface of bubbles generated forcing air through a submerged orifice in a cylindrical vessel with polymeric surface containing quiescent water.

TL;DR: In this paper, the authors used the CAE software (MoldFlow) to analyze the result with different materials (ABS, ABS/PC, Mg), different processing parameters (injection temperature, mold temperature, injection pressure, injection time), and different thickness (1.0mm, 0.9mm).

TL;DR: In this paper, the snail which is mounted at inlet of the inner pipe and assumed as a swirl generator was used to increase heat transfer in concentric double-pipe heat exchangers by passive method.

TL;DR: In this article, the effect of the fluid Prandtl number on heat transfer under a semi-confined turbulent slot jet was investigated using a computational fluid dynamics simulation code and the results showed that the effects of different thermal properties of a fluid (gas or liquid phase) on the heat transfer were investigated.

TL;DR: In this paper, three-dimensional non-Newtonian computations of micro-injection molding were performed using control volume finite element method (CVFEM) and the results showed that the mold temperature is the most important factor on process parameters.

TL;DR: A modified transient bioheat transfer equation based on combing the porous medium property and the scalar effective thermal conductivity equation in order to include the directional effect of blood flow was proposed in this paper.

TL;DR: In this article, a finite volume formulation for discretizing governing equations of the flow field and a volume-of-fluid method to predict the fluid interface is presented. And the surface tension is modeled using a continuum surface force concept and thus computed as a function of the interfacial curvature.

TL;DR: In this paper, an integral approach is developed to estimate temperature-dependent thermal conductivity without internal measurements, where the spatial temperature distribution is modeled as a third-order function of position, whose coefficients are determined from the heat fluxes and the temperatures at both ends at each measurement.

TL;DR: In this article, a unique iterative algorithm, utilizing the concept of equivalent heat transfer dimensionality, was developed to obtain heat transfer coefficients from cooling curves, which can make it possible to more accurately determine cooling and freezing times and corresponding refrigeration loads.

TL;DR: In this article, the authors present a review of the hydrocooling time estimation methods for fruits and vegetables, and quantitatively evaluate the selected hydroxooling estimation methods by comparing their numerical results to a comprehensive experimental hydroximation data set.

TL;DR: In this article, the effect of uniform suction or injection through the surface of the disk on the velocity and temperature distributions as well as the heat transfer is considered, and numerical solutions of the nonlinear equations which govern the hydrodynamics and energy transfer are obtained.

TL;DR: In this article, a method to extend the classical free meniscus theory to account for evaporation from the free surface in a two-component system was proposed, and the effects of evapuration on the free surfaces profile and solute concentration distribution were investigated.

TL;DR: In this article, temperature measurements have been made in two jet flows, the first exiting from a smooth contraction nozzle and the second from a long pipe with a fully developed pipe flow profile.