Temat: 81.05.Fb - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Self-Similar Solidification of Binary Alloys
Autorzy:: Alexandrov, D.
Ivanov, A.
Malygin, A.
Powiązania:: https://bibliotekanauki.pl/articles/1808056.pdf
Data publikacji:: 2009-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 44.05.+e
81.30.Fb
Opis:: The self-similar crystallization process of a binary mixture from a cooled boundary is studied on the basis of two models with a planar front and mushy layer. Approximate analytical solutions of the process describing the solidification with a mushy layer are found. The theory under consideration is in good agreement with experiments carried out by Huppert and Worster for ice growing from aqueous salt solutions.
Źródło:: Acta Physica Polonica A; 2009, 115, 4; 795-799
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Analytical Solution for a Problem of Directional Solidification in a Ternary System
Autorzy:: Alexandrov, D.
Ivanov, A.
Powiązania:: https://bibliotekanauki.pl/articles/1808053.pdf
Data publikacji:: 2009-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 44.05.+e
81.30.Fb
Opis:: This paper is devoted to new analytic results relating to the nonstationary dynamics of directional solidification of ternary solutions with two moving layers of the phase transition lying between solid and liquid phases. Explicit analytical solutions of the problem under consideration are constructed on the basis of laboratory experiments carried out by Aitta, Huppert and Worster.
Źródło:: Acta Physica Polonica A; 2009, 115, 4; 786-790
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Mushy Layer Formation during Solidification οf Binary Alloys from a Cooled Wall: the Role of Boundary Conditions
Autorzy:: Alexandrova, I.
Alexandrov, D.
Aseev, D.
Bulitcheva, S.
Powiązania:: https://bibliotekanauki.pl/articles/1808055.pdf
Data publikacji:: 2009-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 44.05.+e
81.30.Fb
Opis:: Motivated by metallurgical and geophysical applications we present a mathematical model describing the process of unidirectional solidification of binary melts or solutions, which is based on the classical Stefan thermodiffusion theory with a planar front up to a time of mushy layer initiation and on the quasi-equilibrium theory of solidification with a constitutionally supercooled region afterwards. The role of boundary conditions imposed at the cooled wall is studied in terms of heat flux coefficients describing ultimately nonlinear dynamics of the process.
Źródło:: Acta Physica Polonica A; 2009, 115, 4; 791-794
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Numerical Analysis of the Rapid Solidification Process of NiTi Binary Alloy
Autorzy:: Ternik, P.
Zadravec, M.
Svetec, M.
Rudolf, R.
Powiązania:: https://bibliotekanauki.pl/articles/1402311.pdf
Data publikacji:: 2015-07
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 64.70.Ja
81.30.Fb
44.05.+e
Opis:: The objective of the present work is to analyse the solidification process of NiTi binary alloy. The physical medium is taken as an incompressible fluid where the heat is transferred by conduction and convection, including the thermal phase change phenomenon. The last one is modelled by the improvement procedure called enthalpy-porosity formulation, where the liquid-solid mushy zone is treated as a porous zone with porosity equal to the liquid fraction. The numerical model is based on the finite volume method in body fitted coordinates with a SIMPLER scheme to couple the pressure and velocity fields. The results are presented for the velocity and temperature field, as well as for the NiTi mass fraction during the solidification process.
Źródło:: Acta Physica Polonica A; 2015, 128, 1; 43-47
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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