Journal of Heat Transfer: Recent submissions
Now showing items 981-1000 of 3611
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Semi-Infinite Solid Solution Adjusted for Radial Systems Using Time-Dependent Participating Volume-to-Surface Ratio and Simplified Solutions for Finite Solids
(The American Society of Mechanical Engineers (ASME), 2018)Time-dependent participating volume-to-surface ratio, V(t)/A, is used to adjust the semi-infinite (SI) solid solutions to the radial systems. In cylinders and spheres, the present “radial” SI sold model extends the domain ... -
Effect of Moisture Transfer Through a Semipermeable Membrane on Condensation/Frosting Limit
(The American Society of Mechanical Engineers (ASME), 2018)This paper investigates frost formation on a flat horizontal surface, with humid air flowing over the surface and a cold liquid desiccant flowing below the surface. Two different surfaces, a semipermeable membrane and an ... -
Numerical Investigation of Natural Convection Heat Transfer From an Array of Horizontal Fins in Non-Newtonian Power-Law Fluids
(The American Society of Mechanical Engineers (ASME), 2018)Natural convection heat transfer from an array of horizontal rectangular fins on a vertical flat plate in non-Newtonian power-law fluids has been studied. The underlying physical principles affecting heat transfer were ... -
Surface Shape Design in Different Convection Heat Transfer Problems Via a Novel Coupled Algorithm
(The American Society of Mechanical Engineers (ASME), 2018)In this study, a new coupled surface shape design (SSD) methodology named direct design method is presented for the solution of problems containing different types of convection heat transfer in which a specific distribution ... -
Use of Detailed Particle Melt Modeling to Calculate Effective Melt Properties for Powders
(The American Society of Mechanical Engineers (ASME), 2018)Selective laser melting (SLM) is a widely used powder-based additive manufacturing process. However, it can be difficult to predict how process inputs affect the quality of parts produced. Computational modeling has been ... -
Molecular Dynamic Study of Boiling Heat Transfer Over Structured Surfaces
(The American Society of Mechanical Engineers (ASME), 2018)A phase change heat transfer from liquid to gas is studied in nanoscopic framework using molecular dynamics. Water on structured Si substrate is observed from molecular viewpoint after employing heat flux at a constant ... -
The Rayleigh Number Effect on the Periodic Heating of an Enclosure Filled With a Fluid and Discrete Solid Blocks
(The American Society of Mechanical Engineers (ASME), 2018)The steady-periodic natural convection phenomenon inside a heated enclosure filled with disconnected, discrete solid blocks, and under horizontal, time-periodic heating is investigated numerically. This configuration is ... -
An Experimental Investigation on Heat Transfer Characteristics of Hot Surface by Using CuO–Water Nanofluids in Circular Jet Impingement Cooling
(The American Society of Mechanical Engineers (ASME), 2018)In the present study, an experimental investigation has been carried out to analyze the heat transfer characteristics of CuO–water nanofluids jet on a hot surface. A rectangular stainless steel foil (AISI-304, 0.15 mm ... -
Scaling Analysis of a Moving Point Heat Source in Steady-State on a Semi-Infinite Solid
(The American Society of Mechanical Engineers (ASME), 2018)This paper presents a systematic scaling analysis of the point heat source in steady-state on a semi-infinite solid. It is shown that all characteristic values related to an isotherm can be reduced to a dimensionless ... -
Estimating Two Heat-Conduction Parameters From Two Complementary Transient Experiments
(The American Society of Mechanical Engineers (ASME), 2018)A desirable feature of any parameter estimation method is to obtain as much information as possible with one experiment. However, achieving multiple objectives with one experiment is often not possible. In the field of ... -
Transient Two-Dimensional Heat Conduction Problem With Partial Heating Near Corners
(The American Society of Mechanical Engineers (ASME), 2018)This paper provides a solution for two-dimensional (2D) heating over a rectangular region on a homogeneous plate. It has application to verification of numerical conduction codes as well as direct application for heating ... -
Heat Exchanger Improvement Via Curved Microfluidic Channels: Impacts of Cross-Sectional Geometry and Dean Vortex Strength
(The American Society of Mechanical Engineers (ASME), 2018)The efficiency of conventional heat exchangers is restricted by many factors, such as effectiveness of convective heat transfer and the cost of their operation. The current research deals with these issues by developing a ... -
Experimental Investigation of the Flow and Heat Transfer in a Helically Corrugated Cooling Channel
(The American Society of Mechanical Engineers (ASME), 2018)The detailed flow field and heat transfer were experimentally investigated in a channel with a circular cross section and equipped with a helical rib of low blockage ratio. Stereoscopic particle image velocimetry (S-PIV) ... -
Large Eddy Simulation of Liquid Metal Turbulent Mixed Convection in a Vertical Concentric Annulus
(The American Society of Mechanical Engineers (ASME), 2018)In the present study, turbulent forced and mixed convection heat transfer to a liquid metal flowing upwards in a concentric annulus is numerically investigated by means of large eddy simulation (LES). The inner-to-outer ... -
Unsteady Flow of Carreau Fluid in a Suspension of Dust and Graphene Nanoparticles With Cattaneo–Christov Heat Flux
(The American Society of Mechanical Engineers (ASME), 2018)This is a theoretical exploration of the magnetohydrodynamic Carreau fluid in a suspension of dust and graphene nanoparticles. Graphene is a two-dimensional single-atom thick carbon nanosheet. Due to its high thermal ... -
Energy Consumption and Drying Time Optimization of Convective Drying for Performance Improvement: Response Surface Methodology and Lattice Boltzmann Method
(The American Society of Mechanical Engineers (ASME), 2018)In this paper, an optimization procedure is presented by response surface method to optimize the temperature and velocity of drying air and thickness of the moist object inside the dryer. The optimization procedure is ... -
Decreased Thermal Conductivity of Polyethylene Chain Influenced by Short Chain Branching
(The American Society of Mechanical Engineers (ASME), 2018)In this paper, we have studied the effect of short branches (side chains) on the thermal conductivity (TC) of a polyethylene (PE) chain. With a reverse nonequilibrium molecular dynamics (RNEMD) method, TCs of the pristine ... -
The Experimental Investigation of Impinging Heat Transfer of Pulsation Jet on the Flat Plate
(The American Society of Mechanical Engineers (ASME), 2018)A series of tests were performed for the pulsating jet impingement heat transfer by varying the Reynolds number (5000 ≤ Re ≤ 20,000), operation frequency (10 Hz ≤ f ≤ 25 Hz), and dimensionless nozzle-to-surface distance ... -
A Pressure-Base One-Fluid Compressible Formulation for High Speed Two-Phase Flows With Heat and Mass Transfer
(The American Society of Mechanical Engineers (ASME), 2018)This paper presents a numerical method for high-speed compressible cavitating flows. The method is derived from one-fluid formulation in a sense that the two phases are well mixed and the mixture is considered as a locally ... -
A New Transient High Heat Flux Convection Calibration Facility for Heat Transfer Gauges in High Enthalpy Flows
(The American Society of Mechanical Engineers (ASME), 2018)This paper presents a novel transient method for calibrating heat transfer gauges for convective wall heat flux measurements in high enthalpy flows. The new method relies on the transient heating of sensor substrates under ...