Journal of Heat Transfer: Recent submissions
Now showing items 1981-2000 of 3611
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Hole Staggering Effect on the Cooling Performance of Narrow Impingement Channels Using the Transient Liquid Crystal Technique
(The American Society of Mechanical Engineers (ASME), 2014)This study examines experimentally the cooling performance of narrow impingement channels as could be castin in modern turbine airfoils. Full surface heat transfer coefficients are evaluated for the target plate and the ... -
Development of a Device for the Nondestructive Thermal Diffusivity Determination of Combustion Chamber Deposits and Thin Coatings
(The American Society of Mechanical Engineers (ASME), 2014)An experimental radiation chamber has been developed to nondestructively measure the thermal diffusivity of a combustion chamber deposit (CCD) layer. The accumulation of CCD shifts the operability range of homogeneous ... -
Simple Mechanistically Consistent Formulation for Volume of Fluid Based Computations of Condensing Flows
(The American Society of Mechanical Engineers (ASME), 2014)Numerous investigations have been conducted to extend adiabatic liquid–gas volumeoffluid (VOF) flow solvers to include condensation phenomena by adding an energy equation and phasechange source terms. Some proposed ... -
Flux Limiters in Radial Heat Transport in Silicon Nanolayers
(The American Society of Mechanical Engineers (ASME), 2014)By using the thermomasstheory approach, the temperature in a thin layer heated by a hot spot is derived in steady states. It is shown that an anomalous temperature profile, which seems to be at odds with the fundamental ... -
Efficient Cellular Automata Method for Heat Transfer in Tumor
(The American Society of Mechanical Engineers (ASME), 2014)Magnetic interstitial hyperthermia is a hopeful treatment method for tumor. Before treatment, the tumor would be embedded with a number of ferromagnetic seeds, which can produce energy under an alternating magnetic field. ... -
A Look on Fang Number
(The American Society of Mechanical Engineers (ASME), 2014)In this study, a look on Fang number (Fa) is presented. The Fa was introduced recently in 2013 by Professor Xiande Fang to provide great facilitation in describing flow boiling heat transfer coefficients. It is defined as ... -
Thermal Spreading Analysis of Rectangular Heat Spreader
(The American Society of Mechanical Engineers (ASME), 2014)A unique nondimensional scheme that employs a sourcetosubstrate “area ratio†(e.g., footprint), has been utilized for analytically determining the steadystate temperature field within a centrallyheated, cuboidal heat ... -
Performance of Near Field Thermophotovoltaic Cells Enhanced With a Backside Reflector
(The American Society of Mechanical Engineers (ASME), 2014)Thermophotovoltaic (TPV) systems are very promising for waste heat recovery. This work analyzes the performance of a nearfield TPV device with a gold reflecting layer on the backside of the cell. The radiative transfer ... -
Magnetohydrodynamics Flow and Heat Transfer Around a Solid Cylinder Wrapped With a Porous Ring
(The American Society of Mechanical Engineers (ASME), 2014)The problem of the effect of an external magnetic field on fluid flow and heat transfer characteristics is relevant to several physical phenomena. In this paper, flow and heat transfer of an electricallyconductive fluid ... -
Free Convection in Asymmetrically Heated Vertical Channels With Opposing Buoyancy Forces
(The American Society of Mechanical Engineers (ASME), 2014)Laser interferometry and flow visualization were used to study free convective heat transfer inside a vertical channel. Most studies in the literature have investigated buoyancy forces in a single direction. The study ... -
Temperature Effect on Phase Transition Radiation of Water
(The American Society of Mechanical Engineers (ASME), 2014)Infrared radiation associated with vaporliquid phase transition of water is investigated using a suspension of cloud droplets and midinfrared (IR) (3–5 خ¼m) radiation absorption measurements. Recent measurements and ... -
First Principles and Finite Element Predictions of Radiative Properties of Nanostructure Arrays: Single Walled Carbon Nanotube Arrays
(The American Society of Mechanical Engineers (ASME), 2014)Recent advances in nanofabrication technology have facilitated the development of arrays of nanostructures in the classical or quantum confinement regime, e.g., singlewalled carbon nanotube (SWCNT) arrays with longrange ... -
On Multilayer Modeling of Radiative Transfer for Use With the Multisource k Distribution Method for Inhomogeneous Media
(The American Society of Mechanical Engineers (ASME), 2014)A nonisothermal medium is modeled using the multilayer approach in which the continuous temperature distribution in a onedimensional system as modeled as being piecewise constant. This has been shown to provide accurate ... -
Temperature Jump Coefficient for Superhydrophobic Surfaces
(The American Society of Mechanical Engineers (ASME), 2014)Mathematical models are developed for heat conduction in creeping flow of a liquid over a microstructured superhydrophobic surface, where because of hydrophobicity, a gas is trapped in the cavities of the microstructure. ... -
Analysis of Entropy Generation During Mixed Convective Heat Transfer of Nanofluids Past a Rotating Circular Cylinder
(The American Society of Mechanical Engineers (ASME), 2014)The entropy generation due to mixed convective heat transfer of nanofluids past a rotating circular cylinder placed in a uniform cross stream is investigated via streamline upwind Petrov–Galerkin based finite element ... -
Electrohydrodynamic Microfabricated Ionic Wind Pumps for Thermal Management Applications
(The American Society of Mechanical Engineers (ASME), 2014)This work demonstrates an innovative microfabricated aircooling technology that employs an electrohydrodynamic (EHD) corona discharge (i.e., ionic wind pump) for electronics cooling applications. A single, microfabricated ... -
Fluid Flow and Heat Transfer Characteristics of Microencapsulated Phase Change Material Slurry in Turbulent Flow
(The American Society of Mechanical Engineers (ASME), 2014)Microencapsulated phase change material (MPCM) slurry is consisted of a base fluid in which MPCM is dispersed. Due to apparent high heat capacity associated with phase change process, MPCM slurry can be used as a viable ... -
Double Diffusive Marangoni Convection Flow of Electrically Conducting Fluid in a Square Cavity With Chemical Reaction
(The American Society of Mechanical Engineers (ASME), 2014)Double diffusive Marangoni convection flow of viscous incompressible electrically conducting fluid in a square cavity is studied in this paper by taking into consideration of the effect of applied magnetic field in arbitrary ... -
Numerical Investigation of the Transient Hydrothermal Behavior of a Ferrofluid Flowing Through a Helical Duct in the Presence of Nonuniform Magnetic Field
(The American Society of Mechanical Engineers (ASME), 2014)This paper investigates numerically the time dependent hydrothermal behavior of a ferrofluid (water and 4 vol. % Fe3O4) flowing in a helical channel, which is exposed to a nonuniform transverse magnetic field and its walls ... -
Utilization of Pore Size Distributions to Predict Thermophysical Properties and Performance of Biporous Wick Evaporators
(The American Society of Mechanical Engineers (ASME), 2014)A sintered copper porous medium is an extremely effective structure used to enhance the evaporative heat transfer properties of a heat pipe. It provides both capillary pressure to passively draw liquid in and increased ...