Št. zadetkov: 12
Magistrsko delo
Oznake:
numerične simulacije;celični avtomati;fazni prehodi;dvosestavinske zlitine;aluminijeve zlitine;dendritska rast;evtektična rast;
Razvoj metode celičnih avtomatov za probleme z evtektičnimi faznimi prehodi
Leto:
2016
Vir:
Fakulteta za matematiko in fiziko (UL FMF)
Doktorska disertacija
Oznake:
dendritic solidification;phase field method;meshless methods;RBF-FD;adaptive solution procedure;
The main aim of the dissertation is to develop a novel numerical approach for an accurate and computationally efficient modelling of dendritic solidification, which is one of the most commonly observed phenomena in the industrial casting of the metallic alloys. The size and the morphology of dendrit ...
Leto:
2021
Vir:
Repozitorij Univerze v Novi Gorici (RUNG)
Izvirni znanstveni članek
Oznake:
dendritsko strjevanje;metoda faznega polja;brezmrežne metode;krajevno-časovna prilagodljivost;razmetana vozlišča;dendritic solidification;phase-field method;meshless methods;space-time adaptivity;scattered nodes;
A novel adaptive numerical approach is developed for an accurate and computationally efficient phase-field modelling of dendritic solidification. The adaptivity is based on the dynamic quadtree domain decomposition. A quadtree decomposes the computational domain into rectangular sub-domains of diffe ...
Leto:
2022
Vir:
Fakulteta za strojništvo (UL FS)
Objavljeni znanstveni prispevek na konferenci
Oznake:
dendritic growth;phase-field method;meshless methods;polycrystalline solidification;
We have developed a 2-D numerical meshless adaptive approach for phase-field modelling of dendritic solidification. The quadtree-based approach decomposes the computational domain into quadtree sub-domains of different sizes. The algorithm generates uniformly-distributed computational nodes in each ...
Leto:
2023
Vir:
Inštitut za kovinske materiale in tehnologije (IMT)
Objavljeni znanstveni prispevek na konferenci
Oznake:
dendritska rast;metoda faznega polja;brezmrežne metode;robni pogoji;dendritic growth;phase-field method;meshless methods;boundary conditions;
Dendritic morphology is one of the most common microstructures in solidifying metallic materials. The phase-field method represents one of the most suitable approaches for modelling the evolution of dendritic morphology. In this paper, the meshless RBF-FD method and forward Euler scheme are used to ...
Leto:
2024
Vir:
Fakulteta za strojništvo (UL FS)
Objavljeni znanstveni prispevek na konferenci
Oznake:
brezmrežne metode;fazno polje;grafična kartica;meshless methods;phase field;graphical processing unit;
Phase-field modeling of dendritic growth presents the state of the art in the field of solidification modeling and are usually implemented using finite difference models combined with explicit time marching and accelerated by using GPUs. They are a prime candidate for such acceleration, since they r ...
Leto:
2024
Vir:
Inštitut za kovinske materiale in tehnologije (IMT)
Izvirni znanstveni članek
Oznake:
dendritic growth;phase-field method;Neumann boundary conditions;
This paper studies and assesses different Neumann boundary conditions (BC) implementations in the radial basis function generated finite difference (RBF-FD) method. We analyse four BC implementations by solving a phase-field model for single dendrite growth in supercooled pure melts. In the first BC ...
Leto:
2025
Vir:
Fakulteta za strojništvo (UL FS)
Izvirni znanstveni članek
Oznake:
dendritic solidification;Stokes flow;phase-field method;space-time adaptivity;meshless methods;RBF-FD;modified method of regularised sources;
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-ti ...
Leto:
2023
Vir:
Inštitut za kovinske materiale in tehnologije (IMT)
Objavljeni znanstveni prispevek na konferenci
Oznake:
kontinuirano ulivanje jekla;termo-mehanika;močna formulacija;brezmrežne metode;continuous casting of steel;thermo-mechanics;strong form;meshless methods;
This study presents a new strong-form meshless method to solve the thermo-mechanical problem of the solidification process in the continuous casting of steel. A two-dimensional slice that travels in the casting direction is modelled in the Lagrangian system. The newly developed mechanical model is o ...
Leto:
2024
Vir:
Fakulteta za strojništvo (UL FS)
Izvirni znanstveni članek
Oznake:
aluminium alloys;direct-chill casting;computational mechanics;multi-scale modelling;multi-physics modelling;meshless methods;
This paper represents an overview of the elements of the user-friendly simulation system, developed for computational analysis and optimization of the quality and productivity of the electromagnetically direct-chill cast semi-products from aluminium alloys. The system also allows the computational e ...
Leto:
2019
Vir:
Fakulteta za strojništvo (UL FS)