Journal of Heat Transfer: Recent submissions
Now showing items 321-340 of 3611
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A New Method for Estimating Bubble Diameter at Different Gravity Levels for Nucleate Pool Boiling
(The American Society of Mechanical Engineers (ASME), 2021)Nucleate boiling has significant applications in earth gravity (in industrial cooling applications) and microgravity conditions (in space exploration, specifically in making space applications more compact). However, the ... -
Effect of Local Thermal Nonequilibrium on the Stability of the Flow in a Vertical Channel Filled With Nanofluid Saturated Porous Medium
(The American Society of Mechanical Engineers (ASME), 2021)The stability of nanofluid flow in a vertical channel packed with a porous medium is examined for the local thermal nonequilibrium state of the fluid, particle, and solid–matrix phases. The effects of Brownian motion along ... -
On the Determination of Thermal Conductivity From Frequency Domain Thermoreflectance Experiments
(The American Society of Mechanical Engineers (ASME), 2021)The Fourier and the hyperbolic heat conduction equations were solved numerically to simulate a frequency-domain thermoreflectance (FDTR) experiment. Numerical solutions enable isolation of pump and probe laser spot size ... -
Review: Change-of-Phase in an Extended Meniscus 2020 Max Jakob Memorial Award Paper
(The American Society of Mechanical Engineers (ASME), 2021)The extended meniscus and the intermolecular and capillary forces that govern its behavior and connection to change-of-phase heat transfer have been the subject of an increasing body of research over the past 50 years. We ... -
A New Approach to Solve Inverse Boundary Design of a Radiative Enclosure With Specular–Diffuse Surfaces
(The American Society of Mechanical Engineers (ASME), 2021)The maintenance of uniform temperature distribution affects the efficiency in most industrial applications. In this study, a novel strategy has been developed for inverse radiative boundary design problems in radiant ... -
Effect of Wave Instabilities in Thermal and Solutal Mixing of Double-Diffusive Opposed Jets Impinging in a Passive-Mixer
(The American Society of Mechanical Engineers (ASME), 2021)Two-dimensional (2D) numerical experiments are performed to investigate the flow instabilities and mixing of different nonisothermal counterflowing jets in a passive-mixer. The fluid is modeled as a binary mixture with ... -
Two-Dimensional Transient Heat Transfer Model for High-Temperature Laser-Scanning Confocal Microscopy
(The American Society of Mechanical Engineers (ASME), 2021)High-temperature laser-scanning confocal microscopy (HT-LSCM) has proven to be an excellent experimental technique through in situ observations of high temperature phase transformation to study kinetics and morphology using ... -
Application of Planar Laser Rayleigh Scattering for Measurement of Gas Temperature Distributions in Effusion Jet Cooled Panels Exposed to High Temperatures
(The American Society of Mechanical Engineers (ASME), 2021)This experimental study examines the use of planar laser Rayleigh scattering to measure instantaneous gas temperature distributions at different heights above the surface of an effusion cooled plate. An experimental test ... -
The Oriented Spray Cooling System for Heat Rejection and Evaporation
(The American Society of Mechanical Engineers (ASME), 2021)Spray ponds offer significant advantages over mechanical draft cooling towers (MDCTs) including superior simplicity and operability, lower preferred power requirements, and lower capital and maintenance costs. Unlike a ... -
Entropy-Based Optimization for Heat Transfer Enhancement in Tubes With Helical Fins
(The American Society of Mechanical Engineers (ASME), 2021)In this work, a tube with internal helical fins is analyzed and optimized from an entropy generation point of view. Helical fins, in addition to providing heat transfer enhancements, have the potential to level the temperature ... -
Turbulent Heat Transfer Characteristics of Supercritical Carbon Dioxide for a Vertically Upward Flow in a Pipe Using Computational Fluid Dynamics and Artificial Neural Network
(The American Society of Mechanical Engineers (ASME), 2021)Modeling of turbulence heat transfer for supercritical fluids, using computational fluid dynamics (CFD) software, is always challenging due to the drastic property variations near the critical point. The use of artificial ... -
Heat Transfer Analysis of Laminar Pulsating Flow in a Rectangular Channel Using Infrared Thermography
(The American Society of Mechanical Engineers (ASME), 2021)While numerous applied studies have successfully demonstrated the feasibility of unsteady cooling solutions, a consensus has yet to be reached on the local instantaneous conditions that result in heat transfer enhancement. ... -
Flow Behavior and Heat Transfer Characteristics Between Outer and Slotted Inner Cylinders
(The American Society of Mechanical Engineers (ASME), 2021)The performance of air-cooled generators can be improved only if they have efficient system designs for heat removal. An air-cooled generator is composed of a pair of coaxial cylinders, namely, a fixed outer cylinder ... -
Numerical Model for Heat Transfer Processes in Dry Ash Conveyors
(The American Society of Mechanical Engineers (ASME), 2021)The dry handling of bottom ash from coal-fired power plants has become more and more important in recent years due to a lack of water availability at the location of power plants or for environmental reasons. Hence, it is ... -
Perspectives on Molecular-Level Understanding of Thermophysics of Liquids and Future Research Directions
(The American Society of Mechanical Engineers (ASME), 2021)This article provides the author's perspectives on the current molecular-level understanding of thermophysical properties and transport processes in liquids. After illustrating peculiarities of the thermophysical properties ... -
Erratum: “On the Characterization of Lifting Forces During the Rapid Compaction of Deformable Porous Media” [ASME J. Heat Transfer-Trans. ASME, 2009, 131(10), p. 101006; DOI: 10.1115/1.3167543]
(The American Society of Mechanical Engineers (ASME), 2021)The following footnote is added to this paper:This paper is expanded from IMECE2008-66639. -
Flow Pattern Analysis and Heat Transfer Characteristics During Subcooled Flow Boiling in a Rectangular Microchannel on ZnO Microrod Surface
(The American Society of Mechanical Engineers (ASME), 2021)The combination of microstructured surface and microchannel flow boiling is expected to solve the thermal management problems of high-heat-flux devices. In this study, the experimental investigation of subcooled flow boiling ... -
Interfacial Heat Flux Estimation in a Funnel-Shaped Mould and Analysis of Solidification Characteristics in Thin Slab Continuous Casting
(The American Society of Mechanical Engineers (ASME), 2021)An inverse heat transfer model based on Salp Swarm optimization algorithm is developed for prediction of heat flux at the hot faces of a mold in thin slab continuous casting. The industrial mold considered in this work is ... -
Numerical Investigation of Laminar Impinging Jet Cooling of a Protruded Heat Source
(The American Society of Mechanical Engineers (ASME), 2021)Thermofluid dynamics of an unconfined steady two-dimensional laminar jet impinging on an isothermal protruded heater is numerically studied for low jet inlet Reynolds number (Re) between 50 and 250. Results are shown for ... -
Genetic Algorithm and Deep Learning to Explore Parametric Trends in Nucleate Boiling Heat Transfer Data
(The American Society of Mechanical Engineers (ASME), 2021)Exploring parametric effects in pool boiling is challenging because the dependence of the resulting surface heat flux is often nonlinear, and the mechanisms can interact in complex ways. Historically, parametric effects ...