|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||CFD Modeling and Simulation in Materials Processing
||Performance Optimization and Evaluation of a 3D CA-FVM Model for Dendritic Growth of Fe-C Alloy
||Weiling Wang, Sen Luo, Miaoyong Zhu
|On-Site Speaker (Planned)
Because of the tremendous computational cost of 3D (three dimensional) calculation of dendritic growth, the parallel approach and the optimized solving algorithms are adopted to improve the efficiency of codes. Meanwhile, the accuracy of the codes are evaluated by comparing the present prediction with the analytical and software solutions to fluid flow and heat transfer problems, LGK analytical results and the experimental measured columnar dendritic morphology and secondary dendritic arm spacings (SDAS). The results show that both the 3D block-Correction technique and the parallelism of the codes can accelerate the convergence of the iteration. The predicted steady growth velocities of the equiaxed dendritic tip of Fe-0.82wt%C alloy by the present CA model agree with the 3D LGK analytical model as the anisotropy parameter is 0.04. Moreover, the present CA model shows some capability to predict the columnar dendritic growth during the directional solidification process of Fe-0.59wt%C and Fe-1.48wt%C alloys.
||Planned: A print-only volume