Journal of Heat Transfer: Recent submissions
Now showing items 581-600 of 3611
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Numerical Analysis on the Effect of Wavy Partitions on Natural Convection in Porous Enclosure
(The American Society of Mechanical Engineers (ASME), 2020)The influence of partitions on natural convection in a differentially heated porous enclosure has been investigated for three different partition shapes, namely, sine-wave, corrugated and square-wave shape. The objective ... -
Experiments on the Identification of the Onset of Buoyancy-Driven Convection in High Aspect Ratio Top Open Cavities
(The American Society of Mechanical Engineers (ASME), 2020)Experimental analysis of the onset of buoyancy-driven convection in a top facing high aspect ratio cavity is reported. Bottom surface of the cavity is heated, with its two vertical side walls being insulated. Thermal field ... -
In Vitro Thermal Assessment of Vascularized Tissue Phantom in Presence of Gold Nanorods During Photo-Thermal Therapy
(The American Society of Mechanical Engineers (ASME), 2020)Nowadays, laser and nanotechnology have drawn more attention in the field of noninvasive cancer treatment with precise ablation of tumor preserving the surrounding healthy tissue. Besides, the assessment of viscoelastic ... -
Evaporation Momentum Force and Its Relevance to Boiling Heat Transfer
(The American Society of Mechanical Engineers (ASME), 2020)As a liquid evaporates into its vapor, the vapor phase leaves at a higher velocity than the approaching liquid and exerts a net momentum force on the evaporating interface. This force is especially relevant in the contact ... -
Discussion “Investigation of Double Diffusive Natural Convection in Presence of Gray Gas Radiation Within a Square Cavity Using Multiple Relaxation Time Lattice Boltzmann Method,” [Moufekkir, F., Moussaoui, M. A., Mezrhab, A., Fontaine, J. P., Bouzidi, M.
(The American Society of Mechanical Engineers (ASME), 2020)Some errors exist in the above paper. -
Grad's Second Problem and Its Solution Within the Framework of Burnett Hydrodynamics
(The American Society of Mechanical Engineers (ASME), 2020)In his seminal work, Grad not only derived 13 moment equations but also suggested two problems to check his derived equations. These problems are highly instructive as they bring out the character of the equations by ... -
Simulation of Nonlinear Heat Conduction in Perforated Material by Improved Moving Particle Semi-Implicit Method
(The American Society of Mechanical Engineers (ASME), 2020)An improved moving particle semi-implicit (MPS) method is presented to simulate heat conduction with temperature-dependent thermal conductivity. Based on Taylor expansion, a modified Laplacian operator is proposed, and its ... -
Artificial Neural Networks in Radiation Heat Transfer Analysis
(The American Society of Mechanical Engineers (ASME), 2020)In the Monte Carlo ray-trace (MCRT) method, millions of rays are emitted and traced throughout an enclosure following the laws of geometrical optics. Each ray represents the path of a discrete quantum of energy emitted ... -
The Discrete Green's Function for Convective Heat Transfer—Part 1: Definition and Physical Understanding
(The American Society of Mechanical Engineers (ASME), 2020)The discrete Green's function (DGF) is a superposition-based descriptor of the relationship between the surface temperature and the convective heat transfer from a surface. The surface is discretized into a finite number ... -
On the Onset of Gravity Modulated Filtration Convection in Grade Fluids Via Mathieu Functions
(The American Society of Mechanical Engineers (ASME), 2020)The effect of gravity modulation in controlling the onset of convection in a porous medium saturated with a second-grade fluid of Rivlin–Ericksen type is studied. The Brinkman equation of flow through porous media is ... -
Heat Transfer in Supercritical Steam Flowing Through Spiral Tubes
(The American Society of Mechanical Engineers (ASME), 2020)We investigate heat transfer in supercritical steam flowing in a spiral tube by conducting three-dimensional numerical simulations. The current numerical solver has been validated with the existing experimental results, ... -
Onset of Natural Convection in a Porous Layer Confined by an Elliptic or Semi-Elliptic Box Using the Ritz Method
(The American Society of Mechanical Engineers (ASME), 2020)Using an efficient Ritz method, the thermoconvective stability of a bottom-heated porous layer in vertical elliptic and semi-elliptic enclosures with adiabatic side walls is studied. The stability mosaics for the critical ... -
Framing the Impacts of Highly Oscillating Magnetic Field on the Ferrofluid Flow Over a Spinning Disk Considering Nanoparticle Diameter and Solid–Liquid Interfacial Layer
(The American Society of Mechanical Engineers (ASME), 2020)This article communicates on the ferrofluid flow over a spinning disk in the presence of highly oscillating magnetic field. The flow is presumed to be unsteady. Ferrous nanoparticles are suspended within base medium water. ... -
Finite Darcy–Prandtl Number and Maximum Density Effects on Gill's Stability Problem
(The American Society of Mechanical Engineers (ASME), 2020)The simultaneous effect of a time-dependent velocity term in the momentum equation and a maximum density property on the stability of natural convection in a vertical layer of Darcy porous medium is investigated. The density ... -
Heat Transfer and Entropy Generation Analysis of Slit Pillar Array in Microchannels
(The American Society of Mechanical Engineers (ASME), 2020)The slit pillar allows a small fraction of the mainstream flow through pillar to disturb the pillar wake zone fluid and eventually enhance the local and global heat transfer performances in microchannels. In this study, ... -
Enhanced Spray Cooling Using Micropillar Arrays: A Systematic Study
(The American Society of Mechanical Engineers (ASME), 2020)The role of contact-line evaporation on spray impingement heat transfer is systematically studied by spraying de-ionized water on silicon substrates with micropillar arrays. The height, the pillar diameter, and the spacing ... -
Inverse Estimation of Heat Transfer Coefficient and Reference Temperature in Jet Impingement
(The American Society of Mechanical Engineers (ASME), 2020)Applications of impinging jets are wide-ranging from cooling to heating in industrial as well as domestic field. Most of the reported heat transfer distribution data to and from impinging jets have been found from steady-state ... -
Visualization of Quench Front Propagation on Heated Rod Through Single Jet Impingement
(The American Society of Mechanical Engineers (ASME), 2020)Quench front characteristics and flow physics have been observed for single jet impingement using de-ionized (DI) water and various oxide-based nanofluids. Quench front velocity, shape, intensities of sputtering, and ... -
Numerical Analysis of Magnetic Field and Heat Transfer of a Reciprocating Magnetocaloric Regenerator Using a Halbach Magnet Array
(The American Society of Mechanical Engineers (ASME), 2020)In this study, a numerical model of a reciprocating magnetocaloric regenerator using a Halbach magnet array is developed in ansys-fluent software. The model consists of three components, namely, (i) the Halbach magnet ... -
A Mathematical Model on Heat Mass Transfer Including Relaxation Time for Different Geometries During Drying of Foods
(The American Society of Mechanical Engineers (ASME), 2020)In this paper, a single phase lag model on heat mass transfer in application of food drying has been developed. The present model is a generalization of the diffusion model. The whole analysis is presented in nondimensional ...