Journal of Heat Transfer: Recent submissions
Now showing items 681-700 of 3611
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On the Wave Speed of Thermal Radiation Inside and Near the Boundary of an Absorbing Material
(The American Society of Mechanical Engineers (ASME), 2020)Planck's law describes thermal radiation into vacuum from a black body in thermal equilibrium. This law can be easily adapted to describe radiation into a transparent medium with a constant refractive index, and it admits ... -
Gas–Solid Interfacial Heat Transfer Characteristics of Uncoated and Coated Metal Foams for Both Laminar and Turbulent Flow Regimes
(The American Society of Mechanical Engineers (ASME), 2020)Metal foams have been widely used in many fields requiring excellent heat and mass transfer performance such as heat exchangers and catalytic reactors. However, the movements of gas–solid interfacial heat transfer ... -
Pressure Drop and Convective Heat Transfer in Different SiSiC Structures Fabricated by Indirect Additive Manufacturing
(The American Society of Mechanical Engineers (ASME), 2020)The microstructure of porous materials has a significant effect on their transport properties. Engineered cellular ceramics can be designed to exhibit properties at will, thanks to the advances in additive manufacturing. ... -
Revisiting Forced Convection Flow Through a Porous Medium Saturated Channel Using Singular Perturbation Analysis
(The American Society of Mechanical Engineers (ASME), 2020)Accounting for the fact that thermal conductivity of fluid is much less than the thermal conductivity of solid in most of the porous medium-related applications, this study applies perturbation approach in analyzing forced ... -
Comparison of Local Heat Transfer Distribution in Between Three-Dimensional Inclined Closed and Open Cavities
(The American Society of Mechanical Engineers (ASME), 2020)The phenomenon of natural convection is investigated in three-dimensional (3D) cavities with four adiabatic walls and one hot wall. The surface opposite to the hot wall is either a wall (closed cavity) at a lower constant ... -
An Investigation on Thermal Conductivity of Fluid in a Nanochannel by Nonequilibrium Molecular Dynamics Simulations
(The American Society of Mechanical Engineers (ASME), 2020)In this paper, molecular dynamics simulation is used to investigate the effect of copper and argon nanochannels size on the thermal conductivity of argon. Thermal conductivity is calculated by nonequilibrium molecular ... -
Mixed Magnetoconvection of Nanofluids in a Long Vertical Porous Channel
(The American Society of Mechanical Engineers (ASME), 2020)This paper aimed to study the flow of a nanofluid in a long vertical porous channel when an external uniform magnetic field is impressed. The Buongiorno two-phase model of nanofluid is supposed to be slightly compressible ... -
Thermal Transport in Nanoparticle Packings Under Laser Irradiation
(The American Society of Mechanical Engineers (ASME), 2020)Nanoparticle heating due to laser irradiation is of great interest in electronic, aerospace, and biomedical applications. This paper presents a coupled electromagnetic-heat transfer model to predict the temperature ... -
Analysis of Clumped-Pebble Shape on Thermal Radiation and Conduction in Nuclear Beds by Subcell Radiation Model
(The American Society of Mechanical Engineers (ASME), 2020)The core of high-temperature gas-cooled reactor is a dense pebble bed of random packing filled with monosized fuel spheres. Subcell radiation model (SCM) is a generic analytical approach to calculate effective thermal ... -
Numerical Simulation of Vapor–Bubble Collapse—Heat Transfer and Nonlinear Dynamics Issues
(The American Society of Mechanical Engineers (ASME), 2020)In this work, we compute the dynamics of a spherical vapor-bubble in an infinite pool of subcooled water during bubble collapse using our semi-analytical method. The main contribution of this work is to bring out the ... -
High Performance Loop Heat Pipe With Flat Evaporator for Energy-Saving Cooling Systems of Supercomputers
(The American Society of Mechanical Engineers (ASME), 2020)Two high performance loop heat pipes (LHPs) are developed for direct cooling of the chips in supercomputer. The two LHPs using flat evaporator are: one called water-cooling LHP and another one called air-cooling LHP. The ... -
Unsteady Flow and Heat Transfer Characteristics of Primary and Secondary Corrugated Channels
(The American Society of Mechanical Engineers (ASME), 2020)Direct numerical simulations (DNS) have been performed using open source computational fluid dynamics (CFD) package openfoam to investigate the unsteady flow and heat transfer characteristics of primary and secondary ... -
Performance Assessment of Parallel Connected Ranque–Hilsch Vortex Tubes Using Nitrogen, Oxygen, and Air With Brass and Polyamide Nozzles: An Experimental Analysis
(The American Society of Mechanical Engineers (ASME), 2020)In this study, heating and cooling performances of two vortex tubes connected in parallel using different working fluids were compared. In experimental studies, oxygen, nitrogen, and air were used as working fluids in ... -
Oscillatory Flow Induced Developing Convection in a Shallow Enclosure: Effect of Sinusoidal Bottom Wall Temperature
(The American Society of Mechanical Engineers (ASME), 2020)The influence of hydrodynamically developing nonzero mean acoustic streaming motion on transient convective heat transfer in an air-filled rectangular enclosure is studied numerically. The enclosure is two-dimensional with ... -
Contribution of the Hydroxyl Group on Interfacial Heat Conduction of Monohydric Alcohols: A Molecular Dynamics Study
(The American Society of Mechanical Engineers (ASME), 2020)Monohydric alcohols have been used as promising phase change materials (PCMs) for low-temperature latent heat storage. However, the heat storage/retrieval rates are limited due to the low thermal conductivity of such ... -
Modeling and Simulation on Heat Transfer in Blood Vessels Subject to a Transient Laser Irradiation
(The American Society of Mechanical Engineers (ASME), 2020)This paper investigates heat transfer of blood vessels subject to transient laser irradiation, where the irradiation is extremely short times and has high power. The modified Fourier heat conduction model (Cattaneo–Christov ... -
Heat Transfer Photogallery
(The American Society of Mechanical Engineers (ASME), 2020)The 27th Heat Transfer Photogallery was sponsored by the K-22 Heat Transfer Visualization Committee for the 2019 ASME Summer Heat Transfer Conference (SHTC) held in Seattle, WA on July 14–17, 2019, as well as the sixth ... -
Simultaneous Estimation of Pr and Ra in a Natural Convective Flow Using Inverse Technique
(The American Society of Mechanical Engineers (ASME), 2020)The present research proposes an inverse natural convection algorithm for simultaneous estimation of correct values of Prandtl number (Pr) and Rayleigh number (Ra). The inverse problem is formulated as the minimization of ... -
Quantitative Experimental Investigation on the Flow Characteristics of Nanofluids in Turbulent Flow
(The American Society of Mechanical Engineers (ASME), 2020)In addition to the increase of thermal conductivity, heat transfer enhancement mechanism for nanofluids also includes the changes of the flow characteristics, therefore it is needed to take an in-depth research on nanofluids ... -
Visualization of an Oscillating Heat Pipe with Hydraulic Diameter Far Exceeding the Conventional Maximum Hydraulic Diameter
(The American Society of Mechanical Engineers (ASME), 2020)For an oscillating heat pipe (OHP), the hydraulic diameter must be sufficiently small so that vapor plug and liquid slug can be formed by the capillary action. Therefore, the hydraulic diameter should not exceed a critical ...