Journal of Heat Transfer: Recent submissions
Now showing items 2281-2300 of 3611
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Thermal Properties of Couple Stress Fluid Flow in an Asymmetric Channel With Peristalsis
(The American Society of Mechanical Engineers (ASME), 2013)The heat transfer characteristics of a couplestress fluid (CSF) in a twodimensional asymmetric channel is analyzed. The channel asymmetry is produced by choosing the peristaltic wave train on the walls to have different ... -
Effect of Nanostructured Roughness on Evaporating Thin Films in Microchannels for Wenzel and Cassie–Baxter States
(The American Society of Mechanical Engineers (ASME), 2013)A model based on the augmented Young–Laplace equation and kinetic theory was developed to describe the nanostructured roughness effects on an extended evaporating meniscus in a microchannel for Wenzel and Cassie–Baxter ... -
The Effect of Fill Volume on Heat Transfer From Air Cooled Thermosyphons
(The American Society of Mechanical Engineers (ASME), 2013)The effect of fill volume on the heat transfer performance of a cylindrical thermosyphon with an aspect ratio (ratio of the length of the evaporator section to the inner diameter) of 2.33 immersed in a cooling air flow is ... -
A Possible Role of Nanostructured Ridges on Boiling Heat Transfer Enhancement
(The American Society of Mechanical Engineers (ASME), 2013)Evaporation of a nanoscale meniscus on a nanostructured heater surface is simulated using molecular dynamics. The nanostructures, evenly spaced on the surface, are ridges with a width and height of 0.55 nm and 0.96 nm, ... -
Natural Convection From Horizontal Cylinders at Near Critical Pressures—Part II: Numerical Simulations
(The American Society of Mechanical Engineers (ASME), 2013)A numerical investigation of laminar natural convection heat transfer from small horizontal cylinders at nearcritical pressures has been carried out. Carbon dioxide is the test fluid. The parameters varied are: pressure ... -
Second Order Mixed Convective Flow in a Long Vertical Microchannel
(The American Society of Mechanical Engineers (ASME), 2013)The present investigation is concerned with the role of secondorder slip in the mixed convection through a long heated vertical planar microchannel with asymmetric wall temperatures. The fully developed solutions of fields ... -
Supersonic Two Phase Impinging Jet Heat Transfer
(The American Society of Mechanical Engineers (ASME), 2013)The experimental heat transfer rates from a supersonic twophase impinging air jet with disperse droplets are presented. The experimental configuration consists of an expanding disperse mixture of air and water through a ... -
Numerical Study on Conjugate Conduction–Convection in a Cubic Enclosure Submitted to Time Periodic Sidewall Temperature
(The American Society of Mechanical Engineers (ASME), 2013)The laminar conjugate conductionnatural convection heat transfer in a cubic enclosure of finite thickness conductive walls and central cavity filled with fluid is comprehensively studied by using recently developed high ... -
Heat Transfer Due to Natural Convection in a Periodically Heated Slot
(The American Society of Mechanical Engineers (ASME), 2013)Heat transfer resulting from the natural convection in a fluid layer contained in an infinite horizontal slot bounded by solid walls and subject to a spatially periodic heating at the lower wall has been investigated. The ... -
A Hybrid Phonon Gas Model for Transient Ballistic Diffusive Heat Transport
(The American Society of Mechanical Engineers (ASME), 2013)We present a continuum hybrid phonon gas model to describe transient ballisticdiffusive heat transport. In this model, heat energy is carried by a mixture of longitudinal and transverse phonon gases so that the distinction ... -
Natural Convection From Horizontal Cylinders at Near Critical Pressures—Part I: Experimental Study
(The American Society of Mechanical Engineers (ASME), 2013)An experimental study of free convection heat transfer from horizontal wires to carbon dioxide at nearcritical pressures has been performed. In the experiments, platinum wires ranging in size from 25.4 خ¼m to 100 خ¼m ... -
Laminar Natural Convection From Isothermal Vertical Cylinders: Revisting a Classical Subject
(The American Society of Mechanical Engineers (ASME), 2013)Although an extensively studied classical subject, laminar natural convection heat transfer from the vertical surface of a cylinder has generated some recent interest in the literature. In this investigation, numerical ... -
Analysis of Laminar Slip Flow Thermal Transport in Microchannels With Transverse Rib and Cavity Structured Superhydrophobic Walls at Constant Heat Flux
(The American Society of Mechanical Engineers (ASME), 2013)This paper presents an analytical investigation of the thermal transport in a parallelplate channel comprised of superhydrophobic walls. An analytical solution is obtained for the thermally developing state, however, it ... -
Electroosmotic Flow of Viscoelastic Fluids Through a Slit Microchannel With a Step Change in Wall Temperature
(The American Society of Mechanical Engineers (ASME), 2013)Thermally developing electroosmotically generated flow of two viscoelastic fluids, namely the PTT and FENEP models, through a slit microchannel is considered. Both the viscous dissipation and Joule heating effects are taken ... -
Benchmark Solutions for Slip Flow and H1 Heat Transfer in Rectangular and Equilateral Triangular Ducts
(The American Society of Mechanical Engineers (ASME), 2013)Accurate analytic solutions for the fully developed slip flow and H1 heat transfer in rectangular and equilateral triangular ducts are presented. Both velocity slip and temperature jump have significant influences on the ... -
Laminar Flow Heat Transfer and Pressure Drop in a Circular Tube Having Wire Coil and Helical Screw Tape Inserts
(The American Society of Mechanical Engineers (ASME), 2013)The experimental friction factor and Nusselt number data for laminar flow through a circular duct having wirecoil and helical screwtape inserts have been presented. Peripherally and axially local temperatures on the duct ... -
Effect of Local Magnetic Fields on Electrically Conducting Fluid Flow and Heat Transfer
(The American Society of Mechanical Engineers (ASME), 2013)The prediction of electrically conducting fluid past a localized zone of applied magnetic field is the key for many practical applications. In this paper, the characteristics of flow and heat transfer (HI) for a liquid ... -
Hydrodynamic and Thermal Characteristics of Laminar Slip Flow Over a Horizontal Isothermal Flat Plate
(The American Society of Mechanical Engineers (ASME), 2013)In this paper, hydrodynamic and thermal characteristics of laminar incompressible slip flow over an isothermal semiinfinite flat plate at a relatively low Mach number are considered and revised. The nonsimilar and local ... -
Electrokinetic Driven Flow and Heat Transfer of a Non Newtonian Fluid in a Circular Microchannel
(The American Society of Mechanical Engineers (ASME), 2013)An analytical analysis is presented to explore the transport characteristics of electroosmotic flow and associated heat transfer of nonNewtonian powerlaw fluids in a circular microchannel. The approach selected here is ... -
Simultaneous Estimation of Principal Thermal Conductivities of an Anisotropic Composite Medium: An Inverse Analysis
(The American Society of Mechanical Engineers (ASME), 2013)This paper reports the results of an experimental study to determine the principal thermal conductivities (kx,ky, and kz) of an anisotropic composite medium using an inverse heat transfer analysis. The direct problem ...