Browsing Journal of Heat Transfer by Title
Now showing items 1-20 of 3611
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22nd National and 11th ISHMT ASME Heat and Mass Transfer Conference
(The American Society of Mechanical Engineers (ASME), 2015)The 17 papers included in this special issue are focused in various current topics and fundamental physics relevant to heat and mass transfer. A companion special issue is being taken out in the ASME Journal of Thermal ... -
3D Integrated Water Cooling of a Composite Multilayer Stack of Chips
(The American Society of Mechanical Engineers (ASME), 2010)New generation supercomputers with three dimensional stacked chip architectures pose a major challenge with respect to the removal of dissipated heat, which can reach currently as high as 250 ... -
3D Printing of Instantaneous Turbulent Flame Shapes, Experimentally Captured by 3D Computer Tomography and Multi Directional Schlieren Photography
(The American Society of Mechanical Engineers (ASME), 2016)Nonscanning 3DCT(Computer Tomography) technique employing a multidirectional quantitative schlieren photographic system(topleft picture) with flash light source, has been performed to obtain instantaneous density distributions ... -
3D Printing of Spark-Ignited Flame Kernels, Experimentally Captured by 3D-Computer Tomography and Multi-Directional Schlieren Photography
(The American Society of Mechanical Engineers (ASME), 2017)Non-scanning 3D-CT(Computer Tomography) technique employing a multi-directional quantitative schlieren photographic system with flash light source, has been performed to obtain instantaneous density distributions of ... -
5 μm Level Long Photon Tunneling Distance in Near Field Thermal Radiation Through Metallic Patterns With/Without Dielectric Structures
(The American Society of Mechanical Engineers (ASME), 2022)By integrating wave-type analysis and fluctuation-dissipation theorem, the enhancement of photon tunneling distance in near field thermal radiation through metallic nanopatterns with/without dielectric structures is ... -
A Bejan’s Constructal Theory Approach to the Overall Optimization of Heat Exchanging Finned Modules With Air in Forced Convection and Laminar Flow Condition
(The American Society of Mechanical Engineers (ASME), 2009)Optimizing ever smaller heat exchangers determines two opposite needs: augmenting performances, on the one hand; removing heat in excess to reduce failures, on the other. This numerical study, ... -
A Bionic Hierarchy Generative Design for Conductive Heat Transfer
(The American Society of Mechanical Engineers (ASME), 2020)A bionic hierarchy generative design algorithm inspired by the leaf vein growth process is presented for the layout design of heat conduction channels. The design domain is discretized based on the element-free Galerkin ... -
A Closed Form Solution of Dual-Phase Lag Heat Conduction Problem With Time Periodic Boundary Conditions
(The American Society of Mechanical Engineers (ASME), 2019)The Laplace transform (LT) is a widely used methodology for analytical solutions of dual phase lag (DPL) heat conduction problems with consistent DPL boundary conditions (BCs). However, the inversion of LT requires a series ... -
A Compact WSGG Formulation to Account for Inhomogeneity of H2O–CO2 Mixtures in Combustion Systems
(The American Society of Mechanical Engineers (ASME), 2022)An alternative weighted-sum-of-gray-gases (WSGG) model is proposed with a single set of constant pressure-based absorption coefficients that accounts for different mole fraction ratios (MRs) of H2O–CO2. The method requires ... -
A Comparative Experimental Study on Radiative Properties of EB PVD and Air Plasma Sprayed Thermal Barrier Coatings
(The American Society of Mechanical Engineers (ASME), 2015)In this paper, the radiative properties of electron beam physical vapor deposition (EBPVD) and air plasma sprayed (APS) partially yttria stabilized zirconia (YSZ) thermal barrier coatings (TBCs) have been comparatively ... -
A Comparative Modeling Study of Thermal Mitigation Strategies in Irreversible Electroporation Treatments
(The American Society of Mechanical Engineers (ASME), 2022)Irreversible electroporation (IRE), also referred to as nonthermal pulsed field ablation (PFA), is an attractive focal ablation modality for solid tumors and cardiac tissue due to its ability to destroy aberrant cells with ... -
A Comparative Study of Entropy Generation Analysis Through Cartesian and Cylindrical Annulus Geometries
(The American Society of Mechanical Engineers (ASME), 2022)This research paper presents a comparative study dealing with entropy generation analysis in Cartesian and cylindrical annulus geometries. This numerical investigation involves heat and mass transfer coupled with forced ... -
A Comparative Study of Flow Boiling in a Microchannel With Piranha Pin Fins
(The American Society of Mechanical Engineers (ASME), 2016)In this paper, we report on the recent development of an advanced microscale heat sink, termed as piranha pin fin (PPF). A 200 خ¼m deep microchannel embedded with PPFs was fabricated and tested. Fluid flow and heat ... -
A Comparative Study of Performance of Low Reynolds Number Turbulence Models for Various Heat Transfer Enhancement Simulations
(American Society of Mechanical Engineers (ASME), 2019)The goal of this study is to evaluate the computational fluid dynamic (CFD) predictions of friction factor and Nusselt number from six different low Reynolds number k–ε (LRKE) models namely Chang–Hsieh–Chen (CHC), ... -
A Comparative Study of Thermal Metrology Techniques for Ultraviolet Light Emitting Diodes
(The American Society of Mechanical Engineers (ASME), 2013)Methods used to measure the temperature of AlxGa1−xN based ultraviolet light emitting diodes (UV LEDs) are based on optical or electrical phenomena that are sensitive to either local, surface, or average temperatures ... -
A Comparative Study of Thermoconvective Flows of a Newtonian Fluid Over Three Horizontal Undulated Surfaces in a Porous Medium
(The American Society of Mechanical Engineers (ASME), 2022)This paper presents a comparison between the results of three thermoconvective flows of a Newtonian fluid over uniformly heated, undulated horizontal surfaces in a porous medium against the background of the results of a ... -
A Comparative Study on a Shrouded Fin Array With and Without Its Finite Dimension in the Flow Geometry
(The American Society of Mechanical Engineers (ASME), 2023)In numerical heat transfer analysis, despite the involvement of the finite dimension in the geometries of heat-exchanging devices, these dimensions are frequently assumed to be adequately thin and hence neglected for the ... -
A Comparison of Simplified One-Dimensional and Two-Dimensional Analytical Models for Predicting Metallic Recuperator Performance
(The American Society of Mechanical Engineers (ASME), 2020)The performance models for high-temperature metallic recuperators considering one and two-dimensional heat transfer are presented. In one-dimensional model, an explicit expression to represent the effect of both the ... -
A Comprehensive Experimental Investigation of the Performance of Closed-Loop Pulsating Heat Pipes
(The American Society of Mechanical Engineers (ASME), 2017)Closed-loop pulsating heat pipes (CLPHPs) are a new type of two-phase heat transfer devices that can transfer considerable heat in a small space via two-phase vapor and liquid pulsating flow and work with various types of ... -
A Comprehensive Model for Single Bubble Nucleate Flow Boiling
(The American Society of Mechanical Engineers (ASME), 2022)The single bubble dynamics and local thermal effects in a rectangular channel are investigated in this paper under subcooled nucleate flow boiling conditions. A combined effect of Marangoni and microlayer evaporation in ...