Journal of Heat Transfer: Recent submissions
Now showing items 1901-1920 of 3611
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A Monochrome Light Emitting Diode Moirأ© Deflectometry Technique for Two Dimensional Temperature Measurement
(The American Society of Mechanical Engineers (ASME), 2014)This article develops low cost moirأ© deflectometry for twodimensional temperature measurement in free boundary environment. Experimental setup uses a red monochrome lightemitting diode (LED) lamp with wavelength range of ... -
Confined Jet Impingement With Boiling on a Variety of Enhanced Surfaces
(The American Society of Mechanical Engineers (ASME), 2014)Confined jet impingement with boiling offers unique and attractive performance characteristics for thermal management of high heat flux components. Twophase operation of jet impingement has been shown to provide high heat ... -
Large Eddy Simulation of Flow and Heat Transfer Around Two Square Cylinders in a Tandem Arrangement
(The American Society of Mechanical Engineers (ASME), 2014)This paper presents a large eddy simulation (LES) of flow and heat transfer in a tandem configuration of two square cylinders at moderate Reynolds number (Re=16,000). Compressible LES on a hybrid mesh is used to predict ... -
A New Heat Transfer Correlation for Turbulent Flow of Air With Variable Properties in Noncircular Ducts
(The American Society of Mechanical Engineers (ASME), 2014)Turbulent flow and heat transfer of air with variable properties in a set of regular polygonal ducts and circular tube have been numerically simulated. All the ducts have the same hydraulic diameter as their characteristic ... -
Convective Heat Transfer and Contact Resistances Effects on Performance of Conventional and Composite Thermoelectric Devices
(The American Society of Mechanical Engineers (ASME), 2014)The performance of خ shaped conventional and composite thermoelectric devices (TEDs) applied to waste heat recovery by taking the Fourier heat conduction, Joule heating, and the Peltier and Thomson effects in TE materials ... -
A Two Dimensional Cylindrical Transient Conduction Solution Using Green's Functions
(The American Society of Mechanical Engineers (ASME), 2014)There are many applications for problems involving thermal conduction in twodimensional (2D) cylindrical objects. Experiments involving thermal parameter estimation are a prime example, including cylindrical objects suddenly ... -
Identification of Contact Failures in Multilayered Composites With the Markov Chain Monte Carlo Method
(The American Society of Mechanical Engineers (ASME), 2014)This paper deals with the solution of an inverse heat conduction problem, aiming at the identification of the interface thermal contact conductance, which can be directly associated to the quality of the adhesion between ... -
The Role of Pinnae Flapping Motion on Elephant Metabolic Heat Dissipation
(The American Society of Mechanical Engineers (ASME), 2014)The oscillatory rotational motion of the elephant pinna is considered a key mechanism in metabolic heat dissipation. Limited experimental investigations have revealed that the flapping of the elephant's pinna is responsible ... -
Effect of Electric Field Distribution Generated in a Microspace on Pool Boiling Heat Transfer
(The American Society of Mechanical Engineers (ASME), 2014)This study describes the effect of an electric field on nucleate boiling and critical heat flux (CHF) in pool boiling. A dielectric liquid of AE3000 was used as the working fluid. A heating surface was polished to a surface ... -
Droplet Impingement and Vapor Layer Formation on Hot Hydrophobic Surfaces
(The American Society of Mechanical Engineers (ASME), 2014)We use pump–probe thermal transport measurements and high speed imaging to study the residence time and heat transfer of small (360 خ¼m diameter) water droplets that bounce from hydrophobic surfaces whose temperature ... -
Shape Optimization With Isoperimetric Constraints for Isothermal Pipes Embedded in an Insulated Slab
(The American Society of Mechanical Engineers (ASME), 2014)In this paper, we consider the heat transfer from a periodic array of isothermal pipes embedded in a rectangular slab. The upper surface of the slab is sustained at a constant temperature while the lower surface is insulated. ... -
Discussion: “Mixed Convection From a Convectively Heated Vertical Plate to a Fluid With Internal Heat Generation†(Makinde, O. D., and Aziz, P. O., 2011, ASME J. Heat Transfer, 133, p. 122501)
(The American Society of Mechanical Engineers (ASME), 2014)In a recent paper by Makinde and Aziz [1], the effect of thermal buoyancy and internal heat generation along a stationary vertical plate in a uniform free stream was considered (Fig. 1Fig. 1Flow configuration and coordinate ... -
Discussion: “Entransy is Now Clearâ€
(The American Society of Mechanical Engineers (ASME), 2014)The purpose of this discussion is to place in perspective the concept of entransy, in view of the critiques published by Grazzini et al. (2013, “Entropy Versus Entransy,†J. NonEquilib. Thermodyn., 38, pp. 259–271), ... -
Simple Expression for the Emittance of H2O–CO2 Mixtures in Zonal Methods of Radiation Transfer Modeling
(The American Society of Mechanical Engineers (ASME), 2014)A new and simple expression for the calculation of the total gas emittance of H2O–CO2 mixtures for modeling radiation transfer in combustion furnaces is presented. Its accuracy is established by comparing the predictions ... -
Heat Transfer From a Wedge to Fluids at Any Prandtl Number Using the Asymptotic Model
(The American Society of Mechanical Engineers (ASME), 2014)Heat transfer from a wedge to fluids at any Prandtl number can be predicted using the asymptotic model. In the asymptotic model, the dependent parameter Nux/Rex1/2 has two asymptotes. The first asymptote is Nux/Rex1/2Pr→0 ... -
Closure to “Discussion of â€کEntransy is Now Clear’†(2014, ASME J. Heat Transfer, 136(9), p. 095502)
(The American Society of Mechanical Engineers (ASME), 2014)Awad [1], as well as Bejan [3] cited Grazzini et al.'s paper [2] several times as a proof that “entransy analyses do not provide new results relative to what is already available based on established methods (exergy ... -
Combined Experimental Numerical Approach to Determine Radiation Properties of Particle Suspensions
(The American Society of Mechanical Engineers (ASME), 2014)A combination of experimental measurements with a numerical model is used to find the volumeaveraged radiation properties—extinction coefficient, scattering albedo and approximated scattering phase function—of SiC ... -
Equation Solving DRESOR Method for Radiative Transfer in Three Dimensional Isotropically Scattering Media
(The American Society of Mechanical Engineers (ASME), 2014)Distributions of ratios of energy scattered or reflected (DRESOR) method is a very efficient tool used to calculate radiative intensity with high directional resolution, which is very useful for inverse analysis. The method ... -
Application Conditions of Effective Medium Theory in Near Field Radiative Heat Transfer Between Multilayered Metamaterials
(The American Society of Mechanical Engineers (ASME), 2014)This work addresses the validity of the local effective medium theory (EMT) in predicting the nearfield radiative heat transfer between multilayered metamaterials, separated by a vacuum gap. Doped silicon and germanium are ... -
Rationalized Concise Descriptions of Fluid Motions in an Oscillating/Pulsating Heat Pipe
(The American Society of Mechanical Engineers (ASME), 2014)Various ways developed so far in modeling oscillating/pulsating heat pipes (OHPs/PHPs) are briefly reviewed to find which way would be serviceable for design purposes and also be helpful to mathematically plainly describe ...