Results 131 to 140 of about 95,610 (176)

Analytical and numerical solutions to the three-phase Stefan problem with simultaneous occurrences of melting, solidification, boiling, and condensation phenomena

ASME Journal of Heat and Mass Transfer
The one-dimensional (1D) Stefan problem is a prototypical heat and mass transfer problem that analyzes the temperature distribution in a material undergoing phase change.
Mehran Soleimani, Kimmo Koponen, Nils Tilton, A. Bhalla   +3 more
semanticscholar   +1 more source

Uncertainty Quantification of Phase Transition Problems with an Injection Boundary

Communications in Computational Physics
We develop an enthalpy-based modeling and computational framework to quantify uncertainty in Stefan problems with an injection boundary. Inspired by airfoil icing studies, we consider a system featuring an injection boundary inducing domain changes and a
Zhenyi Zhang, Shengbo Ma, Zhennan Zhou
semanticscholar   +1 more source

Generalized Stefan problem for mathematical modeling of the arc transition from the metallic phase to the gaseous phase

Kazakh Mathematical Journal
The investigation of phenomena of the electrical arc transition from metallic to gaseous phase is very important for the optimal choice of parameters of switching apparatus.
Stanislav Kharin, A. Kulakhmetova, Yuriy Shpadi   +2 more
semanticscholar   +1 more source

An adaptive mesh front tracking method for phase change problems

International Journal of Numerical Methods for Heat & Fluid Flow
Purpose This purpose of this study is to propose and test an adaptive grid scheme for modeling phase change problems. Design/methodology/approach Appealing to literature related to solving hydrogeology problems and classic moving boundary ...
V. Voller, Mark Person
semanticscholar   +1 more source

An inverse problem for the one-phase Stefan problem with varying melting temperature

arXiv.org
The present article is dedicated to the forward and backward solution of a transient one-phase Stefan problem. In the forward problem, we compute the evolution of the initial domain for a Stefan problem where the melting temperature varies over time ...
M. Dambrine, Helmut Harbrecht
semanticscholar   +1 more source

A Simple Level Set Method for Solving Stefan Problems

Journal of Computational Physics, 1997
A simple level set method for solving Stefan problems is presented. This method can be applied to problems involving dendritic solidification. Our method consists of an implicit finite difference scheme for solving the heat equation and a level set ...
S. Chen, B. Merriman, S. Osher, P. Smereka   +3 more
semanticscholar   +1 more source

An extension of the discrete unified gas-kinetic scheme to gas–liquid phase change problems

The Physics of Fluids
In this work, an extension of the discrete unified gas-kinetic scheme (DUGKS) to gas–liquid phase change problems is proposed based on the conservative Allen–Cahn phase-field model.
Yangchun Xia, Zengyao Li
semanticscholar   +1 more source

An implicit regularized enthalpy Lattice Boltzmann Method for the Stefan problem

arXiv.org
Solving the Stefan problem, also referred as the heat conduction problem with phase change, is a necessary step to solve phase change problems with convection.
F. Luddens, Corentin Lothod'e, I. Danaila   +2 more
semanticscholar   +1 more source

Partial differential equation modelling of the solid–liquid phase process in iron sintering and interface control with backstepping method

Ironmaking & Steelmaking: Processes, Products and Applications
Due to the highly continuous temporal and spatial distribution characteristics of the sintering process, the solid–liquid phase interface during sintering is uneven and discontinuous, which seriously affects the quality of sintered ore.
Jinchao Chen, Yushan Jiang, Zengxin Kang, Zhaoxia Wu   +3 more
semanticscholar   +1 more source

Identification of the Boundary Mode in one Thermal Problem Based on the Single-Phase Stefan Model

Cybernetics and Systems Analysis, 2023
Kh. M. Gamzaev
semanticscholar   +1 more source