Journal of Heat Transfer: Recent submissions
Now showing items 1081-1100 of 3611
-
Nusselt Numbers for Poiseuille Flow Over Isoflux Parallel Ridges for Arbitrary Meniscus Curvature
(The American Society of Mechanical Engineers (ASME), 2018)We numerically compute Nusselt numbers for laminar, hydrodynamically, and thermally fully developed Poiseuille flow of liquid in the Cassie state through a parallel plate-geometry microchannel symmetrically textured by a ... -
Theoretical Realizability of Dream-Pipe-Like Oscillating/Pulsating Heat Pipe
(The American Society of Mechanical Engineers (ASME), 2018)The state of the art of thermally self-excited oscillatory heat pipe technology is briefly mentioned to emphasize that there exists no oscillating/pulsating heat pipe (OHP/PHP) suited to long-distance heat transport. ... -
Analysis of Entropy Generation of a Magneto-Hydrodynamic Flow Through the Operation of an Unlooped Pulsating Heat Pipe
(The American Society of Mechanical Engineers (ASME), 2018)The aim of the study is the analysis of a uniform magnetic field effect on fluid flow, heat transfer, and entropy generation through the operation of a pulsating heat pipe (PHP). An open loop PHP with three neighboring ... -
Evaporation Heat Transfer in Thin-Film Region With Bulk Vapor Flow Effect
(The American Society of Mechanical Engineers (ASME), 2018)An extra high evaporating heat transfer coefficient can be obtained by thin-film evaporation. In the current investigation, a new detailed mathematical model is developed by considering the effects of bulk flow and interfacial ... -
Characterization of Heat Transfer by Overlapped-Quadruple Counter Tapes
(The American Society of Mechanical Engineers (ASME), 2018)This paper deals with the influence of overlapped-quadruple twisted tape (OQT) and typical quadruple twisted tape (QT) on the enhancing heat transfer rate in a heat exchanger tube. The effects of tube orientation (co-tapes ... -
Lattice Boltzmann Simulation of Mixed Convection Heat Transfer in a Lid-Driven Square Cavity Filled With Nanofluid: A Revisit
(The American Society of Mechanical Engineers (ASME), 2018)Mixed convection heat transfer of Al2O3 nanofluid in a lid-driven square cavity with differentially heated vertical walls is studied numerically with lattice Boltzmann method (LBM). In order to understand the reasons for ... -
Air-Mist Heat Extraction and Visualization of Droplets–Surface Interactions From 60 to 1200 °C Under Steady-State Conditions
(The American Society of Mechanical Engineers (ASME), 2018)Heat extraction and drop impact regimes occurring when a local portion of a horizontal flat-fan air mist impinges the active surface of a Pt disk hold at Tw from ∼60 to 1200 °C are investigated. Boiling curves comprise ... -
Inverse Estimation of Main Parameters of Spectral Line-Based Weighted Sum of Gray Gases Model With Few Gray Gases to Simulate the Radiation in Nongray Media
(The American Society of Mechanical Engineers (ASME), 2018)The aim of this study is to present a reduced spectral line-based weighted sum of gray gases (SLW) model to simulate the radiation heat transfer in nongray media at high temperatures. Inverse approach is used to divide the ... -
Adaptive Thermal Management Technique to Improve the Efficiency of SSPA for Geo-Synchronous Satellite
(The American Society of Mechanical Engineers (ASME), 2018)This paper presents a novel adaptive thermal management technique to improve the efficiency of solid-state power amplifier (SSPA) for geo-synchronous satellites. The thermal management for space segment is very important ... -
A Letter to the Members of the Heat Transfer Community
(The American Society of Mechanical Engineers (ASME), 2018) -
Ambient Temperature and Self-Heating Scaling Laws for Materials With Temperature-Dependent Thermal Conductivity
(The American Society of Mechanical Engineers (ASME), 2018)Two of the primary variables affecting junction temperature of semiconductor devices are the self-heating due to internal power dissipation within the device and the device's base (or ambient) temperature. For materials ... -
Numerical Modeling of Heavy-Oil Recovery Using Electromagnetic Radiation/Hydraulic Fracturing Considering Thermal Expansion Effect
(The American Society of Mechanical Engineers (ASME), 2018)Production of heavy oil from deep/tight formation using traditional technologies (“cold” production, injection of hot steam, etc.) is ineffective or inapplicable. An alternative is electromagnetic (EM) heating after ... -
Application of the WSGG Model to Solve the Radiative Transfer in Gaseous Systems With Nongray Boundaries
(The American Society of Mechanical Engineers (ASME), 2018)This paper presents a methodology for the application of the weighted-sum-of-gray-gases (WSGG) model to systems where the medium is bounded by nongray surfaces. The method relies on the assumption that each gray gas ... -
Semi-Analytical Source Method for Reaction–Diffusion Problems
(The American Society of Mechanical Engineers (ASME), 2018)Estimation of thermal properties, diffusion properties, or chemical–reaction rates from transient data requires that a model is available that is physically meaningful and suitably precise. The model must also produce ... -
Hands-On Workshops to Assist in Students' Conceptual Understanding of Heat Transfer
(The American Society of Mechanical Engineers (ASME), 2018)A two-year study was conducted to engage undergraduate mechanical engineering students to approach heat transfer education in an active, hands-on manner and excite them to pursue research and graduate studies in the field. ... -
Simulation of Electron–Phonon Coupling and Heating Dynamics in Suspended Monolayer Graphene Including All the Phonon Branches
(The American Society of Mechanical Engineers (ASME), 2018)Thermal effects in monolayer graphene due to an electron flow are investigated with a direct simulation Monte Carlo (DSMC) analysis. The crystal heating is described by simulating the phonon dynamics of the several relevant ... -
A Phenomenological Model for the Solidification of Eutectic and Hypoeutectic Alloys Including Recalescence and Undercooling
(The American Society of Mechanical Engineers (ASME), 2018)In this work, a novel phenomenological model is proposed to study the liquid-to-solid phase change of eutectic and hypoeutectic alloy compositions. The objective is to enhance the prediction capabilities of the solidification ... -
Heat Transfer Photogallery
(The American Society of Mechanical Engineers (ASME), 2018) -
Heat Transfer Photogallery
(The American Society of Mechanical Engineers (ASME), 2018) -
Numerical Simulation of Flow and Heat Transfer in Rotating Cooling Passage With Turning Vane in Hub Region
(The American Society of Mechanical Engineers (ASME), 2018)Numerical simulation of three-dimensional turbulent flow and heat transfer was performed in a multipass rectangular (AR = 2:1) rotating cooling channel with and without turning vane in the hub region under various flow ...