The impact of convection on morphological instability of a planar crystallization front
Электронный научный архив УРФУ
Информация об архиве | Просмотр оригинала| Поле | Значение | |
| Заглавие |
The impact of convection on morphological instability of a planar crystallization front
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| Автор |
Makoveeva, E. V.
Alexandrov, D. V. Galenko, P. K. |
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| Тематика |
CONVECTION
HEAT AND MASS TRANSFER MORPHOLOGICAL INSTABILITY PLANAR SOLID–LIQUID INTERFACE HEAT CONVECTION LINEAR STABILITY ANALYSIS MASS TRANSFER PHASE INTERFACES SOLIDIFICATION CONVECTION HEAT AND MASS TRANSFER MORPHOLOGICAL INSTABILITY MORPHOLOGICAL STABILITY NEUTRAL STABILITY PLANAR SOLIDS PLANAR SOLID–LIQUID INTERFACE SOLID-LIQUID INTERFACES SOLIDIFICATION PROCESS SUPERCOOLINGS SUPERCOOLING |
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| Описание |
A linear morphological stability analysis of a planar solid-liquid phase interface describing the solidification processes of a binary melt with convection is carried out. The developed theory includes conductive and convective heat and mass transfer mechanisms near the phase interface and generalizes previously known theories of morphological stability. The amplification rate as a function of wavenumber of perturbations and neutral stability curve that divides the stability/instability parametric domains are obtained. It is shown that these domains are highly dependent of convection intensity, which represents a stabilizing factor for solidification processes. A criterion of concentration supercooling in the steady-state solidification conditions with convection is found. The obtained dispersion relation and neutral stability curve define various crystallization scenarios such as (i) morphological instability and concentration supercooling appearing to the formation of a two-phase mushy layer, (ii) morphological stability and concentration supercooling leading to the existence of a slurry layer, (iii) morphological stability without concentration supercooling when the planar solidification front is stable, and (iv) morphological instability without concentration supercooling forming the mesoscopically rough phase interface. © 2023 The Author(s)
Deutsche Forschungsgemeinschaft, DFG: GA 1142/11-1; Russian Science Foundation, RSF: 23-19-00337 The theory under consideration was financially supported by the Russian Science Foundation (project no. 23-19-00337 ). Analysis of the front stability together with the conceptual role of the convective flow drawn in this paper has been made under financial support of the German Science Foundation (DFG - Deutsche Forschungsgemeinschaft ), project no. GA 1142/11-1 . |
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| Дата |
2024-04-05T16:32:31Z
2024-04-05T16:32:31Z 2023 |
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| Тип |
Article
Journal article (info:eu-repo/semantics/article) |info:eu-repo/semantics/publishedVersion |
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| Идентификатор |
Makoveeva, EV, Alexandrov, DV & Galenko, PK 2023, 'The impact of convection on morphological instability of a planar crystallization front', International Journal of Heat and Mass Transfer, Том. 217, 124654. https://doi.org/10.1016/j.ijheatmasstransfer.2023.124654
Makoveeva, E. V., Alexandrov, D. V., & Galenko, P. K. (2023). The impact of convection on morphological instability of a planar crystallization front. International Journal of Heat and Mass Transfer, 217, [124654]. https://doi.org/10.1016/j.ijheatmasstransfer.2023.124654 0017-9310 Final All Open Access, Hybrid Gold https://www.scopus.com/inward/record.uri?eid=2-s2.0-85170427036&doi=10.1016%2fj.ijheatmasstransfer.2023.124654&partnerID=40&md5=4af5079f3a8594b62e65fac0865ad224 https://doi.org/10.1016/j.ijheatmasstransfer.2023.124654 http://elar.urfu.ru/handle/10995/130775 10.1016/j.ijheatmasstransfer.2023.124654 85170427036 001106352900001 |
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| Язык |
en
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| Связанные ресурсы |
info:eu-repo/grantAgreement/RSF//23-19-00337
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| Права |
Open access (info:eu-repo/semantics/openAccess)
cc-by https://creativecommons.org/licenses/by/4.0/ |
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| Формат |
application/pdf
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| Издатель |
Elsevier Ltd
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| Источник |
International Journal of Heat and Mass Transfer
International Journal of Heat and Mass Transfer |
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