Results 31 to 40 of about 15,407,758 (296)

A numerical method for phase-change problems [PDF]

open access: yesInternational Journal of Heat and Mass Transfer, 1990
A highly accurate and efficient finite-difference method for phase-change problems with multiple moving boundaries of irregular shape is developed by employing a coordinate transformation that immobilizes moving boundaries and preserves the conservative forms of the original governing equations.
Kim, Charn-Jung, Kaviany, Massoud
openaire   +2 more sources

Prevention and suppression effects of phase change material on thermal runaway in batteries

open access: yesCase Studies in Thermal Engineering, 2023
With the rapid improvement in the electric vehicle industry, lithium-ion batteries are being used in increasing numbers. However, lithium-ion batteries are prone to thermal runaway under various factors, leading to fires and explosions that seriously ...
Ruke Ni   +4 more
doaj   +1 more source

Explicit solutions to phase change problems [PDF]

open access: yesQuarterly of Applied Mathematics, 1983
We examine two heat transfer and phase change problems having explicit solutions. The first involves melting of an initially cold material and clarifies the meaning of a recent result of Tarzia [5]. The second concerns a model of binary alloy solidification which, in some cases, is seen to be incorrect.
Solomon, A. D.   +2 more
openaire   +1 more source

On the complex least squares problem with constrained phase [PDF]

open access: yes, 2011
The problem of solving approximately in the least squares sense an overdetermined linear system of equations with complex valued coefficients is considered, where the elements of the solution vector are constrained to have the same phase.
Markovsky, Ivan, Ivan Markovsky
core   +2 more sources

A Block Triple-Relaxation-Time Lattice Boltzmann Method for Solid–Liquid Phase Change Problem

open access: yesMathematics
This study introduces a block triple-relaxation-time (B-TriRT) lattice Boltzmann model designed specifically for simulating melting phenomena within a rectangular cavity subject to intense heating from below, characterized by high Rayleigh (Ra) numbers ...
Xuguang Yang, Zhenyu Chen, Yong Zhao
doaj   +1 more source

Optimization of the formulation of a phase change slurry

open access: yes, 2022
S.227-235Based on a formulation for a Phase Change Slurry (PCS) with 30 wt.% n-octadecane, 7 wt.% emulsifier with an Hydrophilic-Lypophilic-Balance (HLB) of 12 and a nucleating agent an optimization of the composition of the PCS was done. The HLB and the
Hagelstein, Georg   +4 more
core   +1 more source

Permeability and strain-stress characteristics of phase-change clay under triaxial compression

open access: yesYantu gongcheng xuebao, 2023
The phase-change clay-included paraffin-based phase-change material (PPCM) provides a new way to solve the freeze-thaw problem during winter construction of clay-core walls in cold regions.
YANG Jiaqi , LIU Donghai , WANG Zefan
doaj   +1 more source

Thermal-fluid analysis of an RTG-powered ice penetrator for europa subsurface access: CFD modeling with phase-regime analysis

open access: yesFrontiers in Astronomy and Space Sciences
Europa, Jupiter’s ice-covered moon, harbors a subsurface ocean representing a prime target for astrobiological investigation. This study presents computational fluid dynamics (CFD) analysis of a radioisotope-powered thermal ice penetrator (cryobot ...
Wang Xing
doaj   +1 more source

An Optimum Enthalpy Approach for Melting and Solidification with Volume Change

open access: yesEnergies, 2019
Classical numerical methods for solving solid–liquid phase change assume a constant density upon melting or solidification and are not efficient when applied to phase change with volume expansion or shrinkage.
Moritz Faden   +2 more
doaj   +1 more source

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

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