The 9th International Conference on Multiscale Materials Modeling

講演情報

Symposium

I. Multiscale Modeling of Grain Boundary Dynamics, Grain Growth and Polycrystal Plasticity

[SY-I12] Symposium I-12

2018年11月1日(木) 16:00 〜 17:15 Room7

Chairs: Blas Pedro Uberuaga(Los Alamos National Laboratory, United States of America), Chris P Race(University of Manchester, UK)

[SY-I12] A Parallel Algorithm for High Resolution 3D Phase Field Simulations of Polycrystalline Solidification

Pavel Strachota, Aleš Wodecki (Czech Technical University in Prague, Czech Republic)

We deal with numerical solution of a three-dimensional phase field model of solidification in single component anisotropic materials. In this contribution, we extend the model by crystal orientation transformation. A robust algorithm is then developed to simulate the growth of multiple grains with an arbitrary number of random crystallographic orientations and a fully resolved 3D dendritic geometry. In the first part, the model and the hybrid parallel implementation of the algorithms are explained. The second part is devoted to demonstrating the effect of mesh-related numerical anisotropy, investigation of the parallel efficiency, and the simulations of complex polycrystalline solidification on very fine meshes.