Journal of Heat Transfer: Recent submissions
Now showing items 1121-1140 of 3611
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Numerically Optimizing the Distribution of the Infrared Radiative Energy on a Surface of a Thermoplastic Sheet Surface
(The American Society of Mechanical Engineers (ASME), 2018)This paper addresses the problem of distributing uniformly the energy flux intercepted by a thermoplastic sheet surface during the infrared radiation. To do so, we discretized this problem and then formulated it as an ... -
Extended Irreversible Thermodynamics Versus Second Law Analysis of High-Order Dual-Phase-Lag Heat Transfer
(The American Society of Mechanical Engineers (ASME), 2018)This study introduces an analysis of high-order dual-phase-lag (DPL) heat transfer equation and its thermodynamic consistency. The frameworks of extended irreversible thermodynamics (EIT) and traditional second law are ... -
Evaporation of a Liquid Droplet in the Presence of a Nanoparticle
(The American Society of Mechanical Engineers (ASME), 2018)Nonequilibrium molecular dynamics (MD) simulations have been performed to understand the evaporation of a liquid droplet in the presence of a solid nanoparticle. The influence of solid–liquid interaction strength (εsl) on ... -
Experimental and Numerical Investigation of Effusion Cooling Effectiveness of Combustion Chamber Liner Plates
(The American Society of Mechanical Engineers (ASME), 2018)This study aims to evaluate adiabatic and conjugate effusion cooling effectiveness of combustion chamber liner plate of gas turbines. Validation of the adiabatic model was done by comparing computational fluid dynamics ... -
Numerical Simulation of the Effect of Transient Shear Stress and Rate of Heat Transfer Around Different Positions of Sphere in the Presence of Viscous Dissipation
(The American Society of Mechanical Engineers (ASME), 2018)The present study is devoted to the problem of oscillatory convective flow in the presence of viscous dissipation around different positions of a sphere. The system of differential equations governing the flow phenomenon ... -
Prediction of the Turbine Tip Convective Heat Flux Using Discrete Green's Functions
(The American Society of Mechanical Engineers (ASME), 2018)The heat fluxes across the turbine tip gap are characterized by large unsteady pressure gradients and shear from the viscous effects. The classical Newton heat convection equation, based on the turbine inlet total temperature, ... -
Thermal Performance Evaluation of Cork Phenolic for Nozzle External Thermal Protection System Using 250 kW Plasma Jet Facility
(The American Society of Mechanical Engineers (ASME), 2018)In one of the launch vehicles of ISRO, there are two solid strap-ons attached to the core liquid engine. During the ascent phase, the external nozzle divergent of the strap-ons experiences heating due to radiation from the ... -
Numerical Investigation on Film Cooling Performance of Fusiform Diffusion Holes
(The American Society of Mechanical Engineers (ASME), 2018)This paper presents a numerical investigation of the film-cooling performance of a kind of diffusion hole with a fusiform cross section. Relative to the rectangular diffusion hole, the up- and/or downstream wall of the ... -
The Subgrid-Scale Approach for Modeling Impingement Cooling Flow in the Combustor Pedestal Tile
(The American Society of Mechanical Engineers (ASME), 2018)The widely used gas turbine combustor double-walled cooling scheme relies on very small pedestals. In a combustor it is impractical for computational fluid dynamics (CFD) to resolve each pedestal individually as that would ... -
Multiobjective Optimization of a Heat-Sink Design Using the Sandwiching Algorithm and an Immersed Boundary Conjugate Heat Transfer Solver
(The American Society of Mechanical Engineers (ASME), 2018)The thermal management is an ever increasing challenge in advanced electronic devices. In this paper, simulation-based optimization is applied to improve the design of a plate-fin heat-sink in terms of operational cost and ... -
Heat Transfer and Thermodynamic Analyses of a Novel Solid–Gas Thermochemical Strontium Chloride–Ammonia Thermal Energy Storage System
(The American Society of Mechanical Engineers (ASME), 2018)A novel solid–gas thermochemical sorption thermal energy storage (TES) system for solar heating and cooling applications operating on four steady-state flow devices and with two transient storage tanks is proposed. The TES ... -
Droplet Heat Transfer on Micropost Arrays With Hydrophobic and Hydrophilic Characteristics
(The American Society of Mechanical Engineers (ASME), 2018)Heat transfer analysis for a water droplet on micropost arrays is carried out while mimicking the environmental conditions. Since the micropost arrays spacing size alters the state of the hydrophilicity of the surface, the ... -
Spreading Resistance in Multilayered Orthotropic Flux Channels With Different Conductivities in the Three Spatial Directions
(The American Society of Mechanical Engineers (ASME), 2018) -
Phase-Change Heat Transfer Measurements Using Temperature-Sensitive Paints
(The American Society of Mechanical Engineers (ASME), 2018)Techniques based on temperature-sensitive paints (TSP) to measure time-resolved temperature and heat transfer distributions at the interface between a wall and fluid during pool and flow boiling are described. The paints ... -
Effect of Mini/Micro/Nanostructures on Filmwise Condensation of Low-Surface-Tension Fluids
(The American Society of Mechanical Engineers (ASME), 2018)Micro/nanostructured surfaces have been widely explored to enhance condensation heat transfer over the past decades. When there is no flooding, micro/nanostructures can enable dropwise condensation by reducing solid-droplet ... -
Natural Convection Heat Transfer From Perforated Hollow Cylinder With Inline and Staggered Holes
(The American Society of Mechanical Engineers (ASME), 2018)The continuity, momentum, and the energy conservation equation for air around a hollow cylinder with inline or staggered holes have been solved in three dimensions to assess the buoyancy driven flow and temperature field ... -
Modeling the Effect of Infrared Opacifiers on Coupled Conduction-Radiation Heat Transfer in Expanded Polystyrene
(The American Society of Mechanical Engineers (ASME), 2018)Heat transfer properties of two expanded polystyrene (EPS) samples of similar density, one without (white) and one with graphite opacifier particles (gray), are compared. Tomographic scans are used to obtain cell sizes of ... -
Reflection of Generalized Magneto-Thermoelastic Waves With Two Temperatures Under Influence of Thermal Shock and Initial Stress
(The American Society of Mechanical Engineers (ASME), 2018)The aim of this investigation is to estimate the theory of generalized magneto-thermoelasticity to solve the problems of two-dimensional (2D) half-space under thermal shock, initial stress, and two temperatures. The governing ... -
Analytical Solution for the Electric Arc Dynamics and Heat Transfer When Exposed to a Magnetic Cross-Field
(The American Society of Mechanical Engineers (ASME), 2018)The motion of the gliding DC electric arc under the effect of magnetic field is investigated. The temperature distribution in the inside and the outside of the moving arc is computed. The temperature distribution for the ... -
Numerical Analysis of Natural Convection Heat Transfer From a Vertical Hollow Cylinder Suspended in Air
(The American Society of Mechanical Engineers (ASME), 2018)Natural convection heat transfer from a vertical hollow cylinder suspended in air has been analyzed numerically by varying the Rayleigh number (Ra) in the laminar (104 ≤ Ra ≤ 108) regime. The simulations have been carried ...