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A coupled domain–boundary type meshless method for phase-field modelling of dendritic solidification with the fluid flowDobravec, Tadej ...Purpose – This study aims to simulate the dendritic growth in Stokes flow by iteratively coupling a domain and boundary type meshless method. Design/methodology/approach – A preconditioned ... phase-field model for dendritic solidification of a pure supercooled melt is solved by the strong-form space-time adaptive approach based on dynamic quadtree domain decomposition. The domain-type space discretisation relies on monomial augmented polyharmonic splines interpolation. The forward Euler scheme is used for time evolution. The boundary-type meshless method solves the Stokes flow around the dendrite based on the collocation of the moving and fixed flow boundaries with the regularised Stokes flow fundamental solution. Both approaches are iteratively coupled at the moving solid–liquid interface. The solution procedure ensures computationally efficient and accurate calculations. The novel approach is numerically implemented for a 2D case. Findings – The solution procedure reflects the advantages of both meshless methods. Domain one is not sensitive to the dendrite orientation and boundary one reduces the dimensionality of the flow field solution. The procedure results agree well with the reference results obtained by the classical numerical methods. Directions for selecting the appropriate free parameters which yield the highest accuracy and computational efficiency are presented. Originality/value – A combination of boundary- and domain-type meshless methods is used to simulate dendritic solidification with the influence of fluid flow efficiently.Source: International journal of numerical methods for heat & fluid flow. - ISSN 0961-5539 (Vol. 33, iss. 8, Jun. 2023, str. 2963-2981)Type of material - article, component part ; adult, seriousPublish date - 2023Language - englishCOBISS.SI-ID - 154935811
Author
Dobravec, Tadej |
Mavrič, Boštjan, 1989- |
Zahoor, Rizwan |
Šarler, Božidar
Topics
dendritic solidification |
Stokes flow |
phase-field method |
space-time adaptivity |
meshless methods |
RBF-FD |
modified method of regularised sources |
dendritsko strjevanje |
Stokesov tok |
metoda faznega polja |
krajevno-časovna prilagodljivost |
brezmrežne metode |
RBF-FD |
modificirana metoda regulariziranih izvirov
Author | Dobravec, Tadej ... |
Title | A coupled domain–boundary type meshless method for phase-field modelling of dendritic solidification with the fluid flow |
Publication date | 2023-06-01 |
COBISS.SI-ID | 154935811 |
Publication version in repository | Publisher's version |
Publication licence | Creative Commons Attribution 4.0 International |
Embargo | Immediate publication for public |
Project(s) from which the publication was funded
Title | Acronym | Project ID | Funder |
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Tranzientni dvofazni tokovi (2009-2021) -> Večfazni sistemi (2022-2027) | P2-0162-2022 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
|
NAPREDNA SIMULACIJA IN OPTIMIZACIJA CELOTNE PROCESNE POTI ZA IZDELAVO VRHUNSKIH JEKEL | L2-3173-2021 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
|
Razvoj naprednih brezmrežnih metod za modeliranje predelave kovin na visokozmogljivih računalnikih | Z2-2640-2020 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
|
RAZVOJ INOVATIVNIH BREZMREŽNIH METOD ZA VEČFIZIKALNE IN VEČNIVOJSKE SIMULACIJE VRHUNSKIH TEHNOLOGIJ | J2-4477-2022 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
|
Napredno brezmrežno modeliranje in simulacija razvoja mikrostrukture za vrhunske kovinske izdelke | Z2-4479-2022 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
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Files that belong to the publication
Link |
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https://www.emerald.com/insight/content/doi/10.1108/HFF-03-2023-0131/full/html |
https://repozitorij.uni-lj.si/IzpisGradiva.php?id=147697 |
https://dirros.openscience.si/IzpisGradiva.php?id=18122 |
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Dobravec, Tadej | 38848 |
Mavrič, Boštjan, 1989- | 36364 |
Zahoor, Rizwan | 37776 |
Šarler, Božidar | 04101 |
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