SPAM - Science, Pizza And Mathematics
PhD-PostDoc workshop and seminar of the institute of scientific computing, the institute of numerical mathematics of the TU Dresden and the Aland-Lab of the TU Bergakademie Freiberg.
When: Last Monday of the month, 5:30pm
Where: Room 217, Zellescher Weg 21-25A
Next Event
Date | Event |
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24.06.2024 |
Extended phase-field crystal models of solidification Presenter: Maik Punke Abstract: The modeling of crystalline materials requires the resolution of microscopic details on large length and time scales to guarantee the description of lattice-dependent features as well as the dynamics of solidification. The so-called phase-field crystal (PFC) model emerged as a prominent framework to model crystalline systems [1, 2]. Indeed, it describes crystalline materials through a continuous order parameter related to the atomic number density and its dynamic at relatively large (diffusive) time scales. It describes solidification and crystal growth, including capillarity, elasticity, nucleation, and motion of defects. We discuss several extensions of the classical PFC model such as the coupling with thermal transport, enabling the description of a temperature-dependent lattice parameter [3] and the coupling with a macroscopic velocity field, explicitly accounting for the relaxation of elastic excitations [4]. We examine how those model extensions influence short- and long range behaviour of the elastic field through a wide range of test cases. Especially, we look at solidification problems in undercooled melts, grain boundary evolution for different crystal symmetries and benchmarks like the Eshelby inclusion problem. Overall, it is shown that the PFC model thanks to its extensions accurately predicts elasticity effects at the mesoscale. [1] K.R. Elder, M. Katakowski, M. Haataja, M. Grant, Modeling Elasticity in Crystal Growth, Physical Review Letters 88, 245701 (2002) |
Future Events
Date | Events |
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TBA |
TBA Presenter: TBA |
Past events:
Date | Events |
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27.05.2024 |
A phase-field model of elastic surfaces in flow Presenter: Maximilian Kloppe |
22.04.2024 |
Amplitude Phase-Field Quasicrystal Presenter: Marcello de Donno |
29.02.2024 |
Pattern formation on deforming active viscoelastic surfaces Presenter: Eloy de Kinkelder |
25.01.2024 |
StreAMDiS - Accurate streamlines computation with AMDiS. Presenter: Mirko Residori |
25.05.2023 |
Fieldsplit preconditioners for Dune-AMDiS using the PETSc library - overview, application and limitation Presenter: Veit Krause |
27.04.2023 |
Bending models for liquid crystal elastomers Presenter: Max Griehl |
23.02.2023 |
Numerical Simulation of Cellular Deformation by Passive and Active Flows Presenter: Lucas Wittwer |
26.01.2023 |
Formation of wrinkles in a bi-layer system using manifold-valued finite elements Presenter: Lisa Nebel |
15.12.2022 | Christmas Special - SPAM-Slam: SPAM does Science Slam |
27.10.2022 |
AMDiScussion: current challanges Presenter: Mirko Residori |
28.04.2022 |
The importance of data management in science, some thoughts and tips Presenter: Lucas Wittwer |
06.04.2022 |
Three dimensional single cell model as height profile formulation Presenter: Jan Sischka |
27.01.2022 |
Adding a Basis to the Amplitude Phase-Field Crystal Presenter: Marcello De Donno |
16.12.2021 | Christmas Special - SPAM-Slam: SPAM does Science Slam |
25.11.2021 | Numerical solution of surface PDEs via the Intrinsic Surface Finite Element Method Presenter: Elena Bachini |
30.09.2021 | Multi-Phasefield Models for Active Cellular Structures Presenter: Dennis Wenzel |
26.08.2021 | An ALE method for simulations of elastic surfaces in flow Presenter: Marcel Mokbel |
24.06.2021 | A Proximal Newton Method for Finite Strain Plasticity Presenter: Patrick Jaap |
27.05.2021 | Multi-Phasefield Models for Cellular Structures on the Sphere Presenter: Lea Happel |
29.04.2021 | A Unified Numerical Model for Wetting of Soft Substrates Presenter: Dominic Mokbel |
25.03.2021 | Modeling Cellular Growth and Division using Multi-Phasefield Simulations Presenter: Harish Jain |
25.02.2021 | A numerical method for the simulation of viscoelastic fluid surfaces Presenter: Eloy de Kinkelder |
28.01.2021 | Numerical treatment of a geometrically nonlinear Cosserat shell model with nonplanar stress-free configuration Presenter: Lisa Nebel |
17.12.2020 | Christmas Special - SPAM-Slam: SPAM does Science Slam |
26.11.2020 | Modelling self-propelled Particles by Active Nematic Vacancy PFC Presenter: Veit Krause |
29.10.2020 | AMDiS meets Dune - Evolution of a Finite-Element Framework Presenter: Simon Praetorius, Felix Müller |
25.06.2020 | Surface Stokes Equations in Stream Function Formulation Presenter: Philip Brandner |
30.04.2020 | Coarse-grained modeling of crystals by phase field models Presenter: Marco Salvalaglio |
27.02.2020 | Active Nematics - a new approach for modelling propulsion in multi-cellular systems Presenter: Dennis Wenzel |
30.01.2020 |
Simulations of an active surface immersed in viscous fluids Presenter: Lucas D. Wittwer |