Journal of Heat Transfer: Recent submissions
Now showing items 421-440 of 3611
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Convective and Absolute Instabilities Induced by Viscous Dissipation in the Thermocapillary Convection With Through-Flow
(The American Society of Mechanical Engineers (ASME), 2021)The mixed convection in a thin liquid film flow over a horizontal plate is investigated under finite Prandtl numbers. The gas–liquid interface is considered free, nondeformable and subject to surface tension gradients and ... -
Electrowetting Induced Droplet Generation in T-Junctions
(The American Society of Mechanical Engineers (ASME), 2021)In this study, droplet generation in a T-junction fluidic channel device was studied by using electrowetting actuation with the consideration of different droplet forming regimes. For this purpose, the finite element method ... -
Revisiting the Lattice Boltzmann Method Through a Nonequilibrium Thermodynamics Perspective
(The American Society of Mechanical Engineers (ASME), 2021)In this paper, we incorporate a nonequilibrium thermodynamics perspective that is consistent with the Onsager reciprocity principle into the lattice Boltzmann framework to propose a novel regularized lattice Boltzmann ... -
Experimental Investigation on Heat Transfer and Friction Factor in Open Matrix Subchannels
(The American Society of Mechanical Engineers (ASME), 2021)Matrix cooling has opened new possibilities for enhancing the convective heat transfer coefficients without compromising upon the structural rigidity and the life of the gas turbine blade at elevated temperatures. However, ... -
Thermal-Hydraulic Characterization of Shell-Side Flow in a Cryogenic Coiled Finned-Tube Heat Exchanger
(The American Society of Mechanical Engineers (ASME), 2021)Coiled finned-tube heat exchangers, also called Collins type heat exchangers, are frequently used in small- to medium-scale cryogenic systems to improve design packaging (compactness) while maintaining high thermal ... -
Experimental Characterization of an Active Infrared Thermography Heat Source
(The American Society of Mechanical Engineers (ASME), 2021)Accurate knowledge of the heat flux characteristics provided by optical heat sources of long heating time nondestructive infrared thermography techniques is essential to determine the adequate application of such techniques; ... -
Pool Boiling of R514A, R1224 yd(Z), and R1336mzz(E) on a Reentrant Cavity Surface
(The American Society of Mechanical Engineers (ASME), 2021)This paper quantifies the pool boiling performance of R514A, R1224 yd(Z), and R1336mzz(E) on a flattened, horizontal Turbo-ESP surface for air-conditioning applications for heat fluxes between roughly 10 kWm−2 and 100 ... -
Effect of Heat Flux on Bubble Coalescence Phenomena and Sound Signatures During Pool Boiling
(The American Society of Mechanical Engineers (ASME), 2021)Boiling heat transfer is extensively used in various industrial applications to efficiently dissipate a large amount of heat by maintaining low surface to fluid temperature differences. The maximum heat flux dissipated ... -
Conduction in Rings With Internal Heat Generation
(The American Society of Mechanical Engineers (ASME), 2021)The basic problem of steady-state heat conduction in a ring with internal heat generation and convective boundary conditions is considered. An exact solution is found for the ring with a rectangular cross section and an ... -
Relationship Between the Nonlocal Effect and Lagging Behavior in Bioheat Transfer
(The American Society of Mechanical Engineers (ASME), 2021)Lots of generalized heat conduction models have been developed in recent decades, such as local thermal nonequilibrium model, phase lagging model, and nonlocal heat conduction model. But no attempt was made to prove which ... -
Visualization of Flow Boiling Experiments on Micro/Nanoscale Structured Surfaces in Microchannel
(The American Society of Mechanical Engineers (ASME), 2021)In this short paper, the method of analyzing microchannel flow boiling phenomena by the image processing tool was briefly introduced. The experiments of subcooled and saturated flow boiling on various micro-/nanostructured ... -
Parametric Analysis of Microfluidic Cooling Systems for Three-Dimensional-Stacked Silicon Microelectronics by Inferential Statistic Approaches
(The American Society of Mechanical Engineers (ASME), 2021)This work is a numerical study of microfluidic cooling of integrated circuits (ICs), using embedded micropin-fins on a silicon chip. The study considers non-uniform chip heat fluxes (250–500 W/cm2) and variable pin fin ... -
Pool Boiling Heat Transfer Augmentation in a Novel Aqueous Binary Mixture of Surfactants
(The American Society of Mechanical Engineers (ASME), 2021)This paper investigates the augmentation of heat transfer during pool boiling of a novel aqueous binary mixture of surfactants. The surfactants used were sodium dodecyl sulfate (SDS) (anionic), centrimonium bromide (CTAB) ... -
Effects of Surface Irregularities and Coatings on Thermal Emittance of Selected Metals Between 373 and 1073 K
(The American Society of Mechanical Engineers (ASME), 2021)In many areas of engineering, radiation heat transfer plays an important role and it is of great importance the knowledge of the thermal radiative properties of the surfaces involved. Radiation properties of solid materials ... -
Natural Convection Heat Transfer From a Vertical Hollow Cylinder With Surface Holes
(The American Society of Mechanical Engineers (ASME), 2021)Three-dimensional continuity, momentum, and energy equations have been solved around a perforated vertical hollow cylinder to predict the buoyancy-induced flow field and the temperature distribution around it. Finite volume ... -
Smoothed Particle Hydrodynamics Modeling of Natural Convection Around a Heated Horizontal Cylinder: A Comparison With Experiments
(The American Society of Mechanical Engineers (ASME), 2021)An experimental and numerical smoothed particle hydrodynamics (SPH) analysis was performed for the convective flow arising from a horizontal, thin cylindrical heat source enclosed in a glycerin-filled, slender enclosure ... -
Heat Transfer Coefficient, Pressure Gradient, and Flow Patterns of R1234yf Evaporating in Microchannel Tube
(The American Society of Mechanical Engineers (ASME), 2021)This paper presents the heat transfer coefficient, pressure gradient, and flow pattern of R1234yf in a microchannel tube. Both heat transfer coefficient and pressure gradient are presented against real saturation pressure, ... -
Heat Transfer Due to Thermoelastic Wave Propagation in a Porous Rod
(The American Society of Mechanical Engineers (ASME), 2021)This paper investigates the propagation of thermoelastic waves in a homogeneous, linear, and isotropic porous solid. For physical and mathematical simplicity, one-dimensional wave propagation in a porous solid rod is ... -
Entropy Generation Analysis and Cooling Time Estimation for a Rotating Vertical Hollow Tube in the Air Medium
(The American Society of Mechanical Engineers (ASME), 2021)An objective function combining the first and second laws of thermodynamics has been employed to delineate the thermodynamic performance on mixed convection around a vertical hollow, rotating cylinder within the laminar ... -
Experimental Investigation Into the Heat Transfer Mechanism of Oscillating Heat Pipes Using Temperature Sensitive Paint
(The American Society of Mechanical Engineers (ASME), 2021)Oscillating heat pipes (OHPs) represent a promising passive mechanism for the removal or spreading of heat. While simple to construct, the fluid and thermodynamics of these devices are still poorly understood. There is ...