Journal of Heat Transfer: Recent submissions
Now showing items 1921-1940 of 3611
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Laminar Natural Convection Between a Vertical Surface With Uniform Heat Flux and Pseudoplastic and Dilatant Fluids
(The American Society of Mechanical Engineers (ASME), 2014)This paper reports the average Nusselt number for steady, laminar natural convection between a vertical surface and otherwise quiescent pseudoplastic and dilatant fluids under a constant and uniform surface heat flux ... -
Effective Computation of Solutions for Nonlinear Heat Transfer Problems in Fins
(The American Society of Mechanical Engineers (ASME), 2014)Fins are essentially used in diverse engineering applications to increase the heat transfer between the hot and cold media. In this paper, a technique for computing the analytic approximate solution of the nonlinear ... -
A Nondimensional Analysis to Characterize Thermomagnetic Convection of a Temperature Sensitive Magnetic Fluid in a Flow Loop
(The American Society of Mechanical Engineers (ASME), 2014)This paper presents results from theoretical and numerical studies of a singlephase, temperature sensitive magnetic fluid operating under steadystate laminar flow conditions in a partially heated thermomagnetic circulation ... -
Experimental Validation of a Computational Fluid Dynamics Methodology for Transitional Flow Heat Transfer Characteristics of a Steady Impinging Jet
(The American Society of Mechanical Engineers (ASME), 2014)This paper presents a computational fluid dynamics (CFD) methodology to accurately predict the heat transfer characteristics of an unconfined steady impinging air jet in the transitional flow regime, impinging on a planar ... -
Influence of Hot Electron Scattering and Electron–Phonon Interactions on Thermal Boundary Conductance at Metal/Nonmetal Interfaces
(The American Society of Mechanical Engineers (ASME), 2014)It has recently been demonstrated that under certain conditions of electron nonequilibrium, electron to substrate energy coupling could represent a unique mechanism to enhance heat flow across interfaces. In this work, we ... -
Laminar Heat Transfer Enhancement Utilizing Nanofluids in a Chaotic Flow
(The American Society of Mechanical Engineers (ASME), 2014)This work numerically examined effects of nanofluids flow on heat transfer in a Cshaped geometry with the aim to evaluate potential advantages of using nanofluids in a chaotic flow. Numerical computations revealed that the ... -
Unsteady Conduction in a Horizontal Solid Cylinder Cooled by Natural Convection: Alternate Lumped Criterion in Terms of the Solid Material
(The American Society of Mechanical Engineers (ASME), 2014)Within the framework of the potent lumped model, unsteady heat conduction takes place in a solid body whose space–mean temperature varies with time. Conceptually, the lumped model subscribes to the notion that the external ... -
A Generalized Critical Heat Flux Correlation for Submerged and Free Surface Jet Impingement Boiling
(The American Society of Mechanical Engineers (ASME), 2014)A critical heat flux (CHF) correlation is developed for jet impingement boiling of a single round jet on a flat circular surface. The correlation is valid for submerged jets as well as for free surface jets with Reynolds ... -
A Method for Computing the Analytical Solution of the Steady State Heat Equation in Multilayered Media
(The American Society of Mechanical Engineers (ASME), 2014)The computation of the analytical solution of the steady temperature distribution in multilayered media can become numerically unstable if there are different longitudinal (i.e., the directions parallel to the layers) ... -
CALL FOR PHOTOGRAPHSHEAT AND MASS TRANSFER PHOTOGALLERY (IMECE Topic 10 49)
(The American Society of Mechanical Engineers (ASME), 2014) -
Natural Convection Heat Transfer Enhancement in a Differentially Heated Parallelogrammic Enclosure Filled With Copper Water Nanofluid
(The American Society of Mechanical Engineers (ASME), 2014)Laminar natural convection of a nanofluid consists of water and copper in a differentially heated parallelogrammic enclosure has been studied numerically using the finite volume method (FVM). Governing equations are solved ... -
Asymmetrical Heating in Rarefied Flows Through Circular Microchannels
(The American Society of Mechanical Engineers (ASME), 2014)This work is aimed at contributing to the thermal analysis of slip flow through circular microducts, providing an analytical solution to the energy conservation equation for partially heated walls. A uniform wall heat flux ... -
Trefftz Functions Applied to Direct and Inverse Non Fourier Heat Conduction Problems
(The American Society of Mechanical Engineers (ASME), 2014)The paper presents a new approximate method of solving nonFourier heat conduction problems. The approach described here is suitable for solving both direct and inverse problems. The way of generating Trefftz functions for ... -
A Modified Conjugate Gradient Method for Transient Nonlinear Inverse Heat Conduction Problems: A Case Study for Identifying Temperature Dependent Thermal Conductivities
(The American Society of Mechanical Engineers (ASME), 2014)Despite numerous studies of conjugate gradient methods (CGMs), the “sensitivity problem†and the “adjoint problem†are inevitable for nonlinear inverse heat conduction problems (IHCPs), which are accompanied by ... -
Experimental Investigation of Temperature Separation in a Counter Flow Vortex Tube
(The American Society of Mechanical Engineers (ASME), 2014)An experimental study of a counterflow Ranque–Hilsch vortex tube is reported here. Literature has been divided over the mechanism of energy transfer responsible for the temperature separation in the vortex tube. A black ... -
Heat Transfer Characteristics of an Inclined Impinging Jet on a Curved Surface in Crossflow
(The American Society of Mechanical Engineers (ASME), 2014)This study reports on heat transfer characteristics on a curved surface subject to an inclined circular impinging jet whose impinging angle varies from a normal position خ¸â€‰= 0 deg to خ¸â€‰= 45 deg at a fixed jet ... -
Free Convection in Shallow and Slender Porous Cavities Filled by a Nanofluid Using Buongiorno's Model
(The American Society of Mechanical Engineers (ASME), 2014)A numerical study of the steady free convection flow in shallow and slender porous cavities filled by a nanofluid is presented. The nanofluid model takes into account the Brownian diffusion and the thermophoresis effects. ... -
Effects of Superhydrophobic and Superhydrophilic Surfaces on Heat Transfer and Oscillating Motion of an Oscillating Heat Pipe
(The American Society of Mechanical Engineers (ASME), 2014)The effects of superhydrophobic surface and superhydrophobic and superhydrophilic hybrid surface on the fluid flow and heat transfer of oscillating heat pipes (OHPs) were investigated in the paper. The inner surfaces of ... -
Conjugate Heat Transfer in Air to Refrigerant Airfoil Heat Exchangers
(The American Society of Mechanical Engineers (ASME), 2014)A light and compact heat exchange system was realized using two airtorefrigerant airfoil heat exchangers and a recirculated heat transport refrigerant. Its heat transfer performance was experimentally investigated. Carbon ... -
Control of Laminar Pulsating Flow and Heat Transfer in Backward Facing Step by Using a Square Obstacle
(The American Society of Mechanical Engineers (ASME), 2014)In the present study, laminar pulsating flow over a backwardfacing step in the presence of a square obstacle placed behind the step is numerically studied to control the heat transfer and fluid flow. The working fluid is ...