Journal of Heat Transfer: Recent submissions
Now showing items 61-80 of 3611
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Semi-Numerical Investigation of Boundary Layer Flow and Heat Transfer of Magnetohydrodynamics Nano-Fluid Flow in Presence of Chemical Reaction Over a Non-Isothermal Porous Medium
(The American Society of Mechanical Engineers (ASME), 6/13/2023 )The technical brief presents, analysis of boundary layer flow and heat transfer in nanofluids under the influence of magnetic field, thermal radiation and chemical reaction over non-isothermal stretching surface through ... -
New Insights in Turbulent Heat Transfer With Oil and Hybrid Nano-Oils, Subject to Discrete Heating, for Parabolic Trough Absorbers
(The American Society of Mechanical Engineers (ASME), 3/20/2023 )The concentrated solar thermal systems, operating in the medium temperature range of 373–573 K, will be extremely useful for several industrial processes. However, the need for an in-depth understanding of the turbulent ... -
Numerical Investigation of Conjugate Natural Convection From a Vertical Cylindrical Open Cavity
(The American Society of Mechanical Engineers (ASME), 5/25/2023 )An extensive numerical analysis is performed on a vertical cylindrical open cavity made of aluminum with varying thicknesses to study conjugate natural convection. The key purpose of this study is to evaluate the effect ... -
Challenges and Innovations of Lithium-Ion Battery Thermal Management Under Extreme Conditions: A Review
(The American Society of Mechanical Engineers (ASME), 3/24/2023 )Thermal management is critical for safety, performance, and durability of lithium-ion batteries that are ubiquitous in consumer electronics, electric vehicles (EVs), aerospace, and grid-scale energy storage. Toward mass ... -
Numerical Study of a Non-Linear Porous Sublimation Problem With Temperature-Dependent Thermal Conductivity and Concentration-Dependent Mass Diffusivity
(The American Society of Mechanical Engineers (ASME), 3/20/2023 )Sublimation heat transfer occurs in a wide range of engineering processes, such as accelerated freeze drying (AFD), energy storage, and food technology. Particularly in the microwave AFD process, preservation of material ... -
Individual Effect of Spatially Periodic Vertical Surface Temperatures and Nanoparticles on Natural Convection in Water
(The American Society of Mechanical Engineers (ASME), 3/13/2023 )This paper considers the thermo-convective boundary-layer flow (BLF) of a water–copper mono-nanofluid over a flat vertical surface which is subjected to three types of periodic temperature variations described by the ... -
Microfluidic Transport in Ternary Liquid Layers Due to Sinusoidal Thermocapillary Actuation
(The American Society of Mechanical Engineers (ASME), 2/21/2023 )The large-scale applicability of the micro- and nanofluidic devices demands continuous technological advancements in the transport mechanisms, especially to promptly mix the analytes and reagents at such a small scale. To ... -
Survival Time of Humans in Extreme Cold Climate: Experimental, Numerical and Parametric Study on Ambient Temperature, Fabric Insulation and Metabolic Heat
(The American Society of Mechanical Engineers (ASME), 2/6/2023 1)Prior knowledge of the survival time of a person clothed with extreme cold-weather clothing would be useful in designing an appropriate fabric ensemble. The survival time may depend on ambient temperature, fabric insulation, ... -
Heat Transfer Characteristics of the Multicavity Tips at Different Turbulence Levels
(The American Society of Mechanical Engineers (ASME), 1/12/2023 )A comprehensive understanding of the tip heat transfer characteristics is important to the blade tip design. In this work, the heat transfer coefficient (h) data of several multicavity tips was measured using a steady-state ... -
Effective Thermal Conductivity Model of Micron Hollow Sphere or Phase Change Material/Opacifier-SiO2 Aerogel Composites
(The American Society of Mechanical Engineers (ASME), 1/12/2023 )Pure SiO2 aerogel has a strong light transmittance in the infrared wavebands from 3.0 to 8.0 μm, and an opacifier could efficiently reduce aerogel's radiative thermal conductivity (λr), especially at high temperatures ... -
Dimensional Analysis in Error Reduction for Prediction of Nucleate Boiling Heat Flux by Artificial Neural Networks for Limited Dataset
(The American Society of Mechanical Engineers (ASME), 2/6/2023 1)In this work, artificial neural networks (ANNs) is used to predict nucleate boiling heat flux by learning from a dataset of twelve experimental parameters across 231 independent samples. An approach to reduce the number ... -
Intrinsic Heat Transfer Enhancement Mechanisms in Boiling With Nanoscale Surface Features
(The American Society of Mechanical Engineers (ASME), 2/3/2023 1)Boiling heat transfer results from a number of multiscale phenomena that are activated by the inception of a nucleating bubble that induces motion of the liquid and vapor phases. Heat is transferred by conduction and ... -
Quasi-Steady Simulation of Glaze Ice Accretion and Heat Transfer in the Supercooled Large Droplet Regime in Atmospheric Turbulent Air Flow
(The American Society of Mechanical Engineers (ASME), 1/12/2023 )To avoid the use of a computationally intensive full unsteady simulation while providing an accurate solution, a quasi-steady simulation has been performed to study glaze and mixed ice accretion in the supercooled large ... -
Estimating the Radiance in Atmosphere-Ocean Systems With Different Atmosphere Models by Discrete Spherical Harmonics Method
(The American Society of Mechanical Engineers (ASME), 4/13/2023 )The radiative transfer in atmosphere-ocean systems with different atmosphere models is evaluated by the discrete spherical harmonics method. Four standard atmosphere models, namely, Tropical, Mid-Latitude Summer, Mid-Latitude ... -
Accelerated Prediction of Photon Transport in Nanoparticle Media Using Machine Learning Trained With Monte Carlo Simulations
(The American Society of Mechanical Engineers (ASME), 4/11/2023 )Monte Carlo simulations for photon transport are commonly used to predict the spectral response, including reflectance, absorptance, and transmittance in nanoparticle laden media, while the computational cost could be high. ... -
Simulation and Property Characterization of Nanoparticle Thermal Conductivity for a Microscale Selective Laser Sintering System
(The American Society of Mechanical Engineers (ASME), 1/12/2023 )Current additive manufacturing (AM) technologies are typically limited by the minimum feature sizes of the parts they can produce. This issue is addressed by the microscale selective laser sintering system (μ-SLS), which ... -
A Machine Learning Approach to Model Oxidation of Toluene in a Bubble Column Reactor
(The American Society of Mechanical Engineers (ASME), 3/20/2023 )A machine-learned (ML) subgrid-scale (SGS) modeling technique is introduced for efficient and accurate prediction of reactants and products undergoing parallel competitive reactions as seen in a bubble column. The model ... -
Mitigation of Heat Transfer Deterioration of Supercritical CO2 Vertical Tube Upward Flows by Introducing Truncated-Ribs in Helical-Like Distribution
(The American Society of Mechanical Engineers (ASME), 1/12/2023 )To effectively alleviate the heat transfer deterioration (HTD) phenomenon of supercritical CO2 flow in a vertical circular tube, this paper proposes multiple truncated ribs from a whole O-ring rib but distributed in ... -
Thermal Conductivity of Some Ceramic Materials at Cryogenic Temperatures
(The American Society of Mechanical Engineers (ASME), 12/19/2022)The application of ceramics in cryogenic systems is expanding. Thermophysical properties of these ceramics in cryogenic temperatures are thus needed. In this investigation, the thermal conductivities of 7740 Pyrex, 99.99% ... -
Buoyancy-Induced Instability of a Power-Law Fluid Saturating a Vertical Porous Slab
(The American Society of Mechanical Engineers (ASME), 12/19/2022)Many engineering applications involve porous media and rely on non-Newtonian working fluids. In this paper, the seepage flow of a non-Newtonian fluid saturating a vertical porous layer is studied. The buoyant flow is ...