Journal of Heat Transfer: Recent submissions
Now showing items 2001-2020 of 3611
-
Simplified Model for Prediction of Bubble Growth at Nucleation Site in Microchannels
(The American Society of Mechanical Engineers (ASME), 2014)Formation of the first bubble at nucleation site is an inception of the two phase flow in pool boiling and flow boiling. Bubble dynamics (bubble nucleation, growth, and departure) plays an important role in heat transfer ... -
Effects of Unsteady Wake on Heat Transfer of Endwall Surface in Linear Cascade
(The American Society of Mechanical Engineers (ASME), 2014)The present study aimed to investigate the effect of an unsteady wake on the heat transfer for the endwall surface of a linear of cascade turbine blade. A naphthalene sublimation method was implemented to obtain the detailed ... -
Thermal Conductivity and Interface Thermal Conductance in Composites of Titanium With Graphene Platelets
(The American Society of Mechanical Engineers (ASME), 2014)Composite films of graphene platelets (GPs) in titanium matrix were prepared on silicon (001) substrates by physical vapor deposition of titanium using magnetron sputtering and dispersion of graphene platelets. The graphene ... -
Magnetohydrodynamics and Soret Effects on Bioconvection in a Porous Medium Saturated With a Nanofluid Containing Gyrotactic Microorganisms
(The American Society of Mechanical Engineers (ASME), 2014)We investigate the bioconvection of gyrotactic microorganism near the boundary layer region of an inclined semi infinite permeable plate embedded in a porous medium filled with a waterbased nanofluid containing motile ... -
“Entransy,†and Its Lack of Content in Physics
(The American Society of Mechanical Engineers (ASME), 2014)Here, I show that “entransy†has no meaning in physics, because, at bottom, it rests on the false claim that in order to transfer heat to a solid body of thermodynamic temperature T, the heat transfer must be proportional ... -
Effects of Heater Orientations on the Natural Circulation and Heat Transfer in a Supercritical CO2 Rectangular Loop
(The American Society of Mechanical Engineers (ASME), 2014)Supercritical fluid based heat transfer loop (NCL) has become a hot topic in energy conversion systems. In such systems, supercritical natural convection stability and heat transfer conditions are crucial for design and ... -
Closure to “Discussion of â€ک “Entransy,†and Its Lack of Content in Physics’ †(2014, ASME J. Heat Transfer, 136(5), p. 055501)
(The American Society of Mechanical Engineers (ASME), 2014)After several indirect exchanges with the opponents making similar accusations, I appreciate being offered a chance of a direct rebuttal to the charges from Bejan himself. I would like to precede our discussion following ... -
Flow and Heat Transfer of Nanoencapsulated Phase Change Material Slurry Past a Unconfined Square Cylinder
(The American Society of Mechanical Engineers (ASME), 2014)Numerical solution is carried out to analyze the effect of nanoencapsulated phase change material (NEPCM) slurry on forced convection heat transfer of steady laminar flow past an isothermal square cylinder. The base fluid ... -
Numerical Study of Convective Heat Transfer Enhancement in a Pipe Rotating Around a Parallel Axis
(The American Society of Mechanical Engineers (ASME), 2014)Cooling of electrical machines is nowadays of high interest in order to improve their efficiency. In railway applications, electrical motors can be shrouded in order to avoid particles to be deposited inside. To ensure a ... -
The Flat Plate Fin of Constant Thickness, Straight Base, and Symmetrical Shape
(The American Society of Mechanical Engineers (ASME), 2014)A plate fin is an extended surface made from a plate. Classical longitudinal and radial fins are particular cases of plate fins with very simple shapes and no curvature. In this paper, the problem of a flat plate fin of ... -
Peristaltic Motion of Nanofluid in a Curved Channel
(The American Society of Mechanical Engineers (ASME), 2014)This article describes the peristaltic transport of nanofluids in a curved channel. Transport equations contain the simultaneous effects of Brownian motion and thermophoretic diffusion of nanoparticles. The governing ... -
Heat Induced Evolution of Phase Transformations in Tetrahydrofuran Hydrate Bearing Sediment
(The American Society of Mechanical Engineers (ASME), 2014)Heat conduction and phase transformations are basic physicalchemical process and control the kinetics of dissociation, fluid flow and strata deformation during hydrate dissociation in sediments. This paper presents a ... -
Heat Dissipation Mechanism at Carbon Nanotube Junctions on Silicon Oxide Substrate
(The American Society of Mechanical Engineers (ASME), 2014)This study investigates heat dissipation at carbon nanotube (CNT) junctions supported on silicon dioxide substrate using molecular dynamics simulations. The temperature rise in a CNT (∼top CNT) not making direct contact ... -
Magnetohydrodynamic Boundary Layer Flow and Heat Transfer of a Nanofluid Over Non Isothermal Stretching Sheet
(The American Society of Mechanical Engineers (ASME), 2014)The boundarylayer flow and heat transfer over a nonisothermal stretching sheet in a nanofluid with the effect of magnetic field and thermal radiation have been investigated. The transport equations used for the analysis ... -
Influence of Thermal Buoyancy on Vortex Shedding Behind a Rotating Circular Cylinder in Cross Flow at Subcritical Reynolds Numbers
(The American Society of Mechanical Engineers (ASME), 2014)The vortex shedding (VS) behind stationary bluff obstacles in crossflow can be initiated by imposing thermal instability at subcritical Reynolds numbers (Re). We demonstrate here that additional thermal instability is ... -
Convective Condensation Inside Horizontal Smooth and Microfin Tubes
(The American Society of Mechanical Engineers (ASME), 2014)An experimental investigation was performed for convective condensation of R410A inside one smooth tube (3.78 mm, inner diameter) and six microfin tubes (4.54, 4.6 and 8.98 mm, fin root diameter) of different geometries ... -
Evaluation of Nanofluids as Potential Novel Coolant for Aircraft Applications: The Case of De ionized Water Based Alumina Nanofluids
(The American Society of Mechanical Engineers (ASME), 2014)There is a critical need for improved coolants for military aircraft applications. The objective of this research is to evaluate nanofluids as potential replacement for the coolant currently used by the Air Force. Alumina/DI ... -
Nusselt Numbers for Thermally Developing Couette Flow With Hydrodynamic and Thermal Slip
(The American Society of Mechanical Engineers (ASME), 2014)The effects of hydrodynamic and thermal slip on heat transfer in a thermally developing, steady, laminar Couette flow are investigated. Fluid temperature at the inlet to a parallel plate channel is prescribed, as various ... -
Electronics Cooling System and Component Design According to the Second Law
(The American Society of Mechanical Engineers (ASME), 2014)This work focuses on a comparison of second law based component design on one hand and second law based system design on the other within the context of electronics cooling. Typical electronics cooling components such as ... -
Influence of Coolant Density on Turbine Blade Film Cooling With Axial and Compound Shaped Holes
(The American Society of Mechanical Engineers (ASME), 2014)Adiabatic filmcooling effectiveness is examined systematically on a typical high pressure turbine blade by varying three critical flow parameters: coolant blowing ratio, coolanttomainstream density ratio, and freestream ...