Journal of Heat Transfer: Recent submissions
Now showing items 701-720 of 3611
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Self-driven Liquid Metal Mollusk Oscillations
(The American Society of Mechanical Engineers (ASME), 2020)Room temperature liquid metal (galinstan, made up of gallium, indium and tin) is driven to oscillate by the phase change of water in the self-excited oscillating heat pipe (OHP) charged with liquid metal and water. The ... -
“Dancing Droplets”: Partial Coalescence on Superhydrophobic Surfaces
(The American Society of Mechanical Engineers (ASME), 2020)Droplet coalescence has received significant attention due to its significant role in fluid mixing, microfluidics, coalescence-induced droplet jumping, and heat and mass transfer applications. Coalescence of droplets has ... -
Surface Plasmon Resonance Imaging: A Technique to Reveal the Dropwise Condensation Mechanism
(The American Society of Mechanical Engineers (ASME), 2020)To understand the physics behind dropwise condensation, a microscopy technique must be able to measure a sub-nanometer film at a high temporal resolution (>1,000 FPS). In this work, automated Surface Plasmon Resonance ... -
Bubble Behavior in Pool Boiling Heat Transfer between Two Plates with a Narrow Gap
(The American Society of Mechanical Engineers (ASME), 2020)The pool boiling phenomena, which may occur at high heat flux in the planar heat pipe such as vapor chamber and thermal ground plane (TGP), were visually investigated in the vertical orientation by capturing the bubble ... -
Frost Halo Dynamics on Superhydrophobic Surfaces
(The American Society of Mechanical Engineers (ASME), 2020)Understanding the frosting mechanisms on solid surfaces is crucial to a broad range of industrial sectors such as aerospace, power transmission, and refrigeration. During the last few decades, extensive studies have been ... -
Discussion: “Thermoelastic Interactions in a Slim Strip Due to a Moving Heat Source Under Dual-Phase-Lag Heat Transfer” (Sarkar, N., and Mondal, S., 2019, ASME J. Heat Transfer, 141(12), p. 124501)
(The American Society of Mechanical Engineers (ASME), 2020)Some errors exist in the above paper. -
Unsteady Laminar Pulsating Flow in a Saturated Porous Microchannel in the Presence of Electrical Double-Layer Effects
(The American Society of Mechanical Engineers (ASME), 2020)The forced convection of a pulsating flow in a saturated porous parallel-plates microchannel driven by a periodic pressure in the presence of an electrical double layer is investigated. Such configuration is very important ... -
Multidimensional Numerical Analysis of the Thermal Behavior and Pyrolysis Gas Flow Inside an Orthotropic Porous Material
(The American Society of Mechanical Engineers (ASME), 2020)This article describes a finite-volume fully implicit solver that simulates the transient thermal response and pyrolysis gas transport inside orthotropic charring ablators. Due to surface recession of ablators in the ... -
New Approach of Triumphing Temperature Nonuniformity and Heat Transfer Performance Augmentation in Micro Pin Fin Heat Sinks
(The American Society of Mechanical Engineers (ASME), 2020)This study is the first part of the development of improved micro pin fin heat sink (MPFHS) for the thermal management of modern microprocessor chip cooling. In the current numerical study, a new fluid flow distribution ... -
Numerical and Experimental Investigation of Phase Change Heat Transfer in the Presence of Rayleigh–Benard Convection
(The American Society of Mechanical Engineers (ASME), 2020)This research investigates the melting rate of a phase change material (PCM) in the presence of Rayleigh–Benard convection. A scaling analysis is conducted for the first time for such a problem, which is useful to identify ... -
Heat Transfer Enhancement Analysis of Tube Receiver for Parabolic Trough Solar Collector With Central Corrugated Insert
(The American Society of Mechanical Engineers (ASME), 2020)Tube receiver with central corrugated insert was introduced as the absorber tube of parabolic trough receiver to increase the overall heat transfer performance of the tube receiver for parabolic trough solar collector (PTC) ... -
Experimental Identification of Steady-State Turbomachinery Heat Transfer Using Nondimensional Groups
(The American Society of Mechanical Engineers (ASME), 2020)Diabatic performance modeling is a prerequisite for engine condition monitoring based on nonsteady-state data points (e.g., Putz et al. 2017, “Jet Engine Gas Path Analysis Based on Takeoff Performance Snapshots,” ASME J. ... -
Heat Transfer in Flat-Plate Boundary Layers: A Correlation for Laminar, Transitional, and Turbulent Flow
(The American Society of Mechanical Engineers (ASME), 2020)The laminar and turbulent regimes of a boundary layer on a flat plate are often represented with separate correlations under the assumption of a distinct “transition Reynolds number.” Average heat coefficients are then ... -
Linear Stability of Momentum Boundary Layer Flow and Heat Transfer Over a Moving Wedge
(The American Society of Mechanical Engineers (ASME), 2020)This paper studies the linear stability of the unsteady boundary-layer flow and heat transfer over a moving wedge. Both mainstream flow outside the boundary layer and the wedge velocities are approximated by the power of ... -
Forced Convection Heat Transfer From a Particle at Small and Large Peclet Numbers
(The American Society of Mechanical Engineers (ASME), 2020)We theoretically study forced convection heat transfer from a single particle in uniform laminar flows. Asymptotic limits of small and large Peclet numbers Pe are considered. For Pe≪1 (diffusion-dominated regime) and a ... -
Nonlinear Analysis of Effect of Rigid Body Rotation on Ferroconvection
(The American Society of Mechanical Engineers (ASME), 2020)The paper presents a numerical study of the effect of rotation on convection and heat transport in ferromagnetic liquids. The conditions for validity of principle of exchange of stabilities have been identified by means ... -
Experimental Study on Heat Transfer of Leading Edge Film-Cooling With Counter-Inclined Cylindrical and Laid-Back Holes
(The American Society of Mechanical Engineers (ASME), 2020)The heat transfer coefficient of counterinclined film holes fed by different intake structures on the turbine vane leading edge (LE) model is experimentally investigated in this paper. A semicylinder model is adopted to ... -
Calibration Tools for Scanning Thermal Microscopy Probes Used in Temperature Measurement Mode
(American Society of Mechanical Engineers (ASME), 2019)We demonstrate the functionality of a new active thermal microchip dedicated to the temperature calibration of scanning thermal microscopy (SThM) probes. The silicon micromachined device consists in a suspended thin ... -
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), ... -
Estimation and Use of the Radiation Distribution Factor Median for Predicting Uncertainty in the Monte Carlo Ray-Trace Method
(American Society of Mechanical Engineers (ASME), 2019)In a recent contribution, the authors show that the uncertainty in heat transfer results obtained using the Monte Carlo ray-trace (MCRT) method is related to the median of the radiation distribution factor probability ...