Journal of Heat Transfer: Recent submissions
Now showing items 221-240 of 3611
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Multi-Objective Optimization of the Perforated Micro Pin-Fin Heat Sink Using Non-Dominated Sorting Genetic Algorithm-II Coupled With Computational Fluid Dynamics Simulation
(The American Society of Mechanical Engineers (ASME), 2022)This paper numerically investigates the optimization of the geometric parameters and the coolant's inflow states of the perforated micropin-fins (MPFs) heat sink using an elitist nondominated sorting genetic algorithm-II ... -
Improving Effectiveness of Flow Measurement by Bypass Method: A Technique Applied to Thermal Mass Flowmeter
(The American Society of Mechanical Engineers (ASME), 2022)Fluid velocity or flow rate measurement, by flow sampling or bypassing flow from main pipelines, offers several advantages, like reducing the footprint of the flowmeter and avoiding the stoppage of a process during flowmeter ... -
Spectral Simulation on the Flow Patterns and Thermal Control of Radiative Nanofluid Spraying on an Inclined Revolving Disk Considering the Effect of Nanoparticle Diameter and Solid–Liquid Interfacial Layer
(The American Society of Mechanical Engineers (ASME), 2022)The current work enlightens the flow pattern and thermal scenario of a nanofluid spraying on an inclined permeable rotating disk. The whirling disk is assumed to revolve with the angular speed Ω. The water-based alumina ... -
A Comparative Study of Thermoconvective Flows of a Newtonian Fluid Over Three Horizontal Undulated Surfaces in a Porous Medium
(The American Society of Mechanical Engineers (ASME), 2022)This paper presents a comparison between the results of three thermoconvective flows of a Newtonian fluid over uniformly heated, undulated horizontal surfaces in a porous medium against the background of the results of a ... -
Free Convection Heat Transfer From a Spherical Shaped Open Cavity
(The American Society of Mechanical Engineers (ASME), 2022)A computational work is performed on laminar free convection from an isothermally heated spherical shaped open cavity with negligible wall thickness suspended in the air. Fluid flow and heat transfer are analyzed in detail ... -
LTNE Effects on Triple-Diffusive Convection in Nanofluids
(The American Society of Mechanical Engineers (ASME), 2022)Triple-diffusive convection for nanofluids in which differences in density are derived because of triple diffusion process, i.e., with three diffusing components: nanoparticles, solute, and heat, using more realistic two ... -
The Stefan Problem With Internal Heat Generation in Spherical Coordinates
(The American Society of Mechanical Engineers (ASME), 2022)A weakly time-dependent equation for the evolution of the solid–liquid interface in spherical coordinates, driven by internal heat generation, is derived for constant surface temperature boundary conditions. The derivation ... -
Computational Investigation on the Thermal and Flow Characteristics of a Turbulent Dual Jet Impinging on a Heated Moving Surface
(The American Society of Mechanical Engineers (ASME), 2022)The present investigation explores the dynamic effects of wall motion on the turbulent flow and thermal characteristics of a dual jet. The effects of variation in Reynolds number (Re) and offset ratio (OR) on different ... -
Experimental Study on the Frosting and Heat Transfer Performance of Three Rows of Variable Pitch Finned Coils
(The American Society of Mechanical Engineers (ASME), 2022)The frost mass in different rows of the outdoor heat exchanger of an air source heat pump is uneven when the ambient temperature is below 0 °C, which leads to a shorter defrosting interval and reduces the heating capacity ... -
Mechanism Analysis of Falling Film Evaporation Two-Phase Flow in Narrow Channels
(The American Society of Mechanical Engineers (ASME), 2022)As an efficient heat and mass transfer technology, falling film evaporation has attracted more and more scholars' attention. In this paper, a falling film evaporation platform was established to discuss the mechanism of ... -
Toward the Ultimate Goal on Simulating Multi-Phase Flows, Simulation of Film Boiling at High-Density Ratios
(The American Society of Mechanical Engineers (ASME), 2022)Flow boiling is a common phenomenon in modern technology and industries. A finite difference Front Tracking method is used to study film boiling on a flat plate subject to a constant heat flux. Large density ratios are ... -
Particle Scale Investigation of Influencing Factors on Heat Transfer in Nonspherical Particle–Fluid System
(The American Society of Mechanical Engineers (ASME), 2022)Heat transfer characteristics of random suspensions of 0.25 aspect ratio (AR) cylinders are investigated for Reynolds numbers (Re) between 10 and 300 and solid fraction (φ) ranging from 0.1 to 0.3 using particle resolved ... -
Experimental Investigations on Thermal-Hydraulics of Supercritical Carbon Dioxide Under Natural Circulation Vertical Flows
(The American Society of Mechanical Engineers (ASME), 2022)Advanced energy systems propose use of supercritical fluids (SCFs) as working fluids owing to various advantages associated with SCF. Supercritical water (SCW), supercritical carbon-dioxide (SC–CO2), and supercritical ... -
An Enhanced Statistical Phonon Transport Model for Nanoscale Thermal Transport
(The American Society of Mechanical Engineers (ASME), 2022)Silicon nanowire transistors are thought to be ideal transistor devices due to electrostatic control of the gate, and the International Roadmap for Devices and Systems has indicated that arrays of these devices are possible ... -
Thermophysical Analysis of Microconfined Turbulent Flow Regimes at Supercritical Fluid Conditions in Heat Transfer Applications
(The American Society of Mechanical Engineers (ASME), 2022)The technological opportunities enabled by understanding and controlling microscale systems have not yet been capitalized to disruptively improve energy processes, especially heat transfer and power generation. The main ... -
Heat Transfer Due to Annular Jets Impinging on a Moving Surface
(The American Society of Mechanical Engineers (ASME), 2022)This work investigates flow and heat transfer under an array of annular jets impinging on a heated moving surface. Numerical solutions of the full Navier–Stokes equation were attempted with a highly refined mesh. This study ... -
Numerical Investigation of Thermal-Hydraulic Performance of U-Tubes Enhanced With Ellipsoidal 45 deg Dimples
(The American Society of Mechanical Engineers (ASME), 2022)This study aims to numerically investigate thermal–hydraulic performance augmentation of ellipsoidal 45 deg dimpled U-tubes with various bend curvatures subjected to constant external heat flux (q′′=10kW/m2) for a range ... -
Revisiting the Schrage Equation for Kinetically Limited Evaporation and Condensation
(The American Society of Mechanical Engineers (ASME), 2022)The Schrage equation is commonly used in thermofluid engineering to model high-rate liquid–vapor phase change of pure fluids. Although shortcomings of this simple model were pointed out decades ago and more rigorous models ... -
Insight to Innovation: An Overview of Research Journey of Dr. Satish Kandlikar
(The American Society of Mechanical Engineers (ASME), 2022)Having published some of the most widely cited publications over the last 30 years, Professor Satish G. Kandlikar has been among the most prominent researcher in the field of heat transfer. Throughout these years, he has ... -
In Memoriam: Professor Peter Griffith (1927–2022)
(The American Society of Mechanical Engineers (ASME), 2022)Professor Peter Griffith died on Mar. 5, 2022, at the age of 94. Pete served in the heat transfer laboratory of the Massachusetts Institute of Technology for more than 60 years. Pete's research encompassed two-phase flow, ...