Results 11 to 20 of about 43,457 (303)

Nonlinear Two-Phase Stefan Problem [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2007
In this paper we consider a nonlinear two-phase Stefan problem in one-dimensional space. The problem is mapped into a nonlinear Volterra integral equation for the free boundary.
K. Ivaz
doaj   +1 more source

The Stefan problem [PDF]

open access: yes, 2015
This bachelor thesis deals with the Stefan problem, from its historical background to the existence and uniqueness of solution to the problem. The physical background is presented at the beginning. Afterwards there are presented some results related to the problem, like explicit solutions and an analysis of the technique for obtaining solutions to the ...
Antón Amayuelas, Marcos
core   +3 more sources

Evolution Equations for the Stefan Problem [PDF]

open access: yes, 2015
We study particular kind of Stefan problem and use the theory of abstract quasilinear evolution equations for its solution. 2010 Mathematics Subject Classification: 35R35, 35B65, 35J70.
Lukarevski, Martin
openaire   +3 more sources

THE STATE OF THE PROBLEM OF THE JOINT MOVEMENT OF FLUID IN THE PORE SPACE

open access: yesВестник КазНУ. Серия математика, механика, информатика, 2022
This article discusses the problems of studying the issue of joint motion of liquids in the porous space. The article provides the construction of a mathematical model of the theory of ltration, which describes phase transitions.
A. A. Mussina   +2 more
doaj   +1 more source

Impact of rigid body and viscous-plastic rod of finite length [PDF]

open access: yesE3S Web of Conferences, 2023
The impact of a rigid body and a rod of finite length made of a viscoplastic incompressible material moving towards each other at constant velocity is studied in the article.
Begmatov Abduvali, Mamatova Nigora
doaj   +1 more source

Solution of the one-dimensional Stefan problem with two transitions for modelling of the water freezing in a glacial crevasse

open access: yesЛëд и снег, 2023
This article presents a numerical solution of the one-dimensional Stefan problem with two phase transitions, which is implemented on a non-uniform grid. The system of equations is written in a general form, i.e.
S. V. Popov
doaj   +1 more source

A study of a Stefan problem governed with space–time fractional derivatives [PDF]

open access: yesJournal of Heat and Mass Transfer Research, 2016
This paper presents a fractional mathematical model of a one-dimensional phase-change problem (Stefan problem) with a variable latent-heat (a power function of position).
Rajeev ., M. Kushwaha, Abhishek Singh
doaj   +1 more source

Simplified methods of numerical modeling of Stefan's problem with explicit allocate of phase boundaries

open access: yesВісник Харківського національного університету імені В.Н. Каразіна. Серія: Математичне моделювання, інформаційні технології, автоматизовані системи управління, 2021
With the development of computer technology and progress in the field of modeling physical and chemical processes, methods of increasing the accuracy, as well as simplifying the algorithms and methods for calculating mathematical models, become ...
Микола Нестеренко   +2 more
doaj   +1 more source

On sentinel method of one-phase Stefan problem

open access: yesJournal of Nigerian Society of Physical Sciences, 2023
This paper is interested in studying the one-phase Stefan problem. For this purpose, we use the nonlinear sentinel method, which relies typically on the approximate controllability and the Fanchel-Rockafellar duality of the minimization problem, to ...
Merabti Nesrine Lamya   +4 more
doaj   +1 more source

Modeling of freezing processes by an one-dimensional thermal conductivity equation with fractional differentiation operators

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2017
We have studied the Stefan problem with Caputo fractional order time derivatives. The difference scheme is built. The algorithm and the program for a numerical solution of the Stefan problem with fractional differentiation operator are created.
Vetlugin D Beybalaev   +4 more
doaj   +1 more source

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