Results 61 to 70 of about 90,225 (303)
Convective-radiation boundary impact on heat transfer in buoyant viscous layers
Convective–radiation boundary conditions are essential in fluid flow analysis, as they capture the combined effects of convection and radiation on heat transfer and system thermal behaviour, with applications in thermal processing, solar energy systems ...
N. Vishnu Ganesh +3 more
doaj +1 more source
Inverse and efficiency of heat transfer convex fin with multiple nonlinearities [PDF]
In this article, we first propose the novel semi-analytical technique—modified Adomian decomposition method (MADM)—for a closed-form solution of the nonlinear heat transfer equation of convex profile with singularity where all thermal parameters are ...
Dilip K. Prasad +7 more
core +1 more source
A combined finite element and phase‐field approach predicts the evolution of microstructure during the directional solidification of Ni‐based superalloys. The model reveals how withdrawal rate, temperature gradient, and wall thickness control the dendrite spacing, highlighting the strong effect of surface regions in thin sections where dendrite growth ...
Sean Böhm +3 more
wiley +1 more source
Previous literature has explained heat transfer by natural convection, radiation and the effect of entropy generation separately. This study focused on the entropy generation of heat transfer by natural convection and radiation instantaneously from ...
Louay Abd Al-Azez Mahdi +2 more
doaj +1 more source
Heat Transfer Augmentation : Radiative-Convective Heat Transfer in a Tube With Fiber Array Inserts [PDF]
Gas-phase heat transfer plays a critical role in many high temperature applications, such as preheaters, combustors, and other thermal equipment. In such cases common heat transfer augmentation methods rely on the convective component alone to achieve ...
Hantsch, A. +2 more
core +1 more source
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares +3 more
wiley +1 more source
Optimization of the core composition of the pressurized water reactors is associated with the calculation of the temperature fields of heat exchange microcells containing separate fuel elements.
V. K. Semenov +3 more
doaj +1 more source
Time‐Dependent Oxidation and Scale Evolution of a Wrought Co/Ni‐Based Superalloy
This study shows how a new wrought Co/Ni‐based superalloy resists oxidation at 800 ∘$^\circ$C. The oxide scale changes from rough, fast‐growing spinel to a dense, protective chromia–alumina layer. Atom probe analysis reveals tiny refractory‐rich bubbles at the interface that mark the transition to long‐term, diffusion‐controlled protection ...
Cameron Crabb +6 more
wiley +1 more source
In-cylinder radiation heat transfer in a small direct injection diesel engine [PDF]
Diesel engine downsizing is of current interest because of the infinite nature of crude oil reserves and the high efficiency of the diesel cycle. Scaling and downsizing studies can make substantial contributions to the optimization of small diesel engine
Meor Said, Mior Azman
core
Impact of mixed convective and radiative heat transfer in spiral-coiled tubes [PDF]
Spiral-coiled tube heat exchangers (SCTHE) have higher heat transfer as compared to the conventional heat transfer devices and are extensively used to extract heat from exhaust gases in the chemical processing industries and also from sunlight for ...
Kushwaha, Naveen +5 more
core +1 more source

