Journal of Heat Transfer: Recent submissions
Now showing items 1001-1020 of 3611
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Design and Performance Evaluation of Constructal Microchannel Network Heatsinks
(The American Society of Mechanical Engineers (ASME), 2018)This work presents the development and analysis of constructal microchannel network architectures for heat dissipation. The network configurations are characterized by multiple flow ramifications and changes in length and ... -
Natural Convection and Surface Radiation in a Heated Wall, C-Shaped Fracture
(The American Society of Mechanical Engineers (ASME), 2018)The present study considers the coupled natural convection and surface radiation process through an open fracture of a solid wall facing a reservoir containing isothermal quiescent fluid (air). The fracture is modeled as ... -
Derivation for Electric Current Regulation Equation of a Gradient Magnetic Field to Control Suspending Magnetic Particles Inside Dialysate Solution
(The American Society of Mechanical Engineers (ASME), 2018)To design a better adsorption performance in a novel magnetic adsorption device used for hemodialysis (HD), the mechanical properties of magnetic absorbents trapped inside a two-phase system are studied in this paper. A ... -
Computational Fluid Dynamics Modeling of Flow Boiling in Microchannels With Nonuniform Heat Flux
(The American Society of Mechanical Engineers (ASME), 2018)The computational fluid dynamics (CFD) modeling of boiling phenomena has remained a challenge due to numerical limitations for accurately simulating the two-phase flow and phase-change processes. In the present investigation, ... -
Fractional Boundary Layer Flow and Heat Transfer Over a Stretching Sheet With Variable Thickness
(The American Society of Mechanical Engineers (ASME), 2018)The paper gives a comprehensive study on the space fractional boundary layer flow and heat transfer over a stretching sheet with variable thickness, and the variable magnetic field is applied. Novel governing equations ... -
Synthesis and Thermal Properties of Magnesium Sulfate Heptahydrate/Urea Resin as Thermal Energy Storage Micro-Encapsulated Phase Change Material
(The American Society of Mechanical Engineers (ASME), 2018)In this study, micro-encapsulated phase change material (microPCM) was successfully synthesized by emulsion polymerization method, using magnesium sulfate heptahydrate (MSH) as core material and urea resin (UR) as shell ... -
Analytical Solution of Temperature Distribution in a Nonuniform Medium Due to a Moving Laser Beam and a Double Beam Scanning Strategy in the Selective Laser Melting Process
(The American Society of Mechanical Engineers (ASME), 2018)Selective laser melting (SLM) has received increasing attention in recent years as an innovative manufacturing technique. The present SLM process only uses a single laser beam to melt and consolidate the powder, which may ... -
Isolated and Coupled Effects of Rotating and Buoyancy Number on Heat Transfer and Pressure Drop in a Rotating Two-Pass Parallelogram Channel With Transverse Ribs
(The American Society of Mechanical Engineers (ASME), 2018)Detailed Nusselt number (Nu) distributions over the leading (LE) and trailing (TE) endwalls and the pressure drop coefficients (f) of a rotating transverse-ribbed two-pass parallelogram channel were measured. The impacts ... -
Heat Transfer Modulation by Inertial Particles in Particle-Laden Turbulent Channel Flow
(The American Society of Mechanical Engineers (ASME), 2018)We study the effects of particle-turbulence interactions on heat transfer in a particle-laden turbulent channel flow using an Eulerian–Lagrangian simulation approach, with direct numerical simulation (DNS) for turbulence ... -
Influence of Rotating Directions on Hydrothermal Characteristics of a Two-Pass Parallelogram Channel With Detached Transverse Ribs
(The American Society of Mechanical Engineers (ASME), 2018)The detailed Nusselt number distributions on leading and trailing endwalls together with the Fanning friction factors of a rotating two-pass parallelogram ribbed channel are simultaneously measured under forward and backward ... -
Effects of Microribs on the Thermal Behavior of Transcritical n-Decane in Asymmetric Heated Rectangular Mini-Channels Under Near Critical Pressure
(The American Society of Mechanical Engineers (ASME), 2018)Microrib is a very promising heat transfer enhancement method for the design of scramjet regenerative cooling channels. In this paper, a three-dimensional numerical model has been built and validated to parametrically ... -
Simulation of Single Bubble Evaporation in a Microchannel in Zero Gravity With Thermocapillary Effect
(The American Society of Mechanical Engineers (ASME), 2018)This paper presents fundamental research on the hydrodynamics and heat transfer surrounding a single elongated bubble during flow boiling in a circular microchannel. A continuum surface force (CSF) model based on the volume ... -
Numerical Modeling of Film Condensation in Horizontal Mini- and Macrocircular Tubes
(The American Society of Mechanical Engineers (ASME), 2018)A partial differential–integral equation has been derived to connect vapor condensation and the development of condensate film thickness in both the tangential and axial directions in a horizontal circular condenser tube. ... -
Simulating Heat Transfer Through Periodic Structures With Different Wall Temperatures: A Temperature Decomposition Method
(The American Society of Mechanical Engineers (ASME), 2018)To simulate heat transfer processes through periodic devices with nonuniform wall temperature distributions, we propose to decompose the regular temperature into two parts: namely the transient part and the equilibrium ... -
Numerical Study and Optimization of Corrugation Height and Angle of Attack of Vortex Generator in the Wavy Fin-and-Tube Heat Exchanger
(The American Society of Mechanical Engineers (ASME), 2018)Wavy fins have been considered as an alternative of the straight fins in compact heat exchangers (CHEs) for better heat transfer performance, which can be augmented by considering vortex generators (VGs). This work is ... -
Conjugate Heat Transfer Predictions for Subcooled Boiling Flow in a Horizontal Channel Using a Volume-of-Fluid Framework
(The American Society of Mechanical Engineers (ASME), 2018)The accuracy of computational fluid dynamic (CFD)-based heat transfer predictions have been examined of relevance to liquid cooling of IC engines at high engine loads where some nucleate boiling occurs. Predictions based ... -
Boiling Heat Transfer Characteristics of Staggered-array Water Impinging Jets on Hot Steel Plate
(The American Society of Mechanical Engineers (ASME), 2018) -
Real-Time Observations of Density Anomaly Driven Convection and Front Instability During Solidification of Water
(The American Society of Mechanical Engineers (ASME), 2018)Natural convection during solidification of liquids is known to impact the freezing characteristics and also lead to defect formation. In this study, we report the findings of real-time interferometric observation of ... -
A Parameter-Estimation Method Using the Ensemble Kalman Filter for Flow and Thermal Simulation in an Engine Compartment
(The American Society of Mechanical Engineers (ASME), 2018)The feasibility of the parameter estimation on the basis of the ensemble Kalman filter (EnKF) for a practical simulation involving model errors was investigated. The three-dimensional flow and thermal simulations for the ... -
Optimization of Heat Exchange in Manifold-Microchannel Grooves
(The American Society of Mechanical Engineers (ASME), 2018)Manifold-microchannel (MM) combinations used on heat transfer surfaces have shown the potential for superior heat transfer performance to pressure drop ratio when compared with chevron-type corrugations for plate (frame) ...