| Abstract Scope |
Permeability, which is a measure of how easily a liquid can flow through a mushy region, is an
important parameter to introduce the information of solidification microstructures into the macroscale casting simulations. Although, over the past half century, many studies have been conducted to predict the permeability of dendritic mushy zone, a definite method, enabling permeability prediction for various dendritic morphologies, has not been established. Recently, we have developed a permeability prediction method by bridging the phase-field and lattice Boltzmann simulations [Acta Mater. 164 (2019) 237-249]. The most distinctive point of this method is utilizing the high-performance computing; we can compute the permeability for realistic dendritic structures. Using this method, we enabled the permeability prediction for liquid flow in the all directions of single-crystal columnar structures [Acta Mater. 188 (2020) 282-287]. Also, the permeability tensor for the columnar structure was developed. |