Modeling of Multiscale and Multiphase Phenomena in Materials Processing

• DOI: 10.1007/s11663-013-9820-1
• Publication Date: 2013-03-19T16:32:09Z
• Authors: Andreas Ludwig; Abdellah Kharicha; Menghuai Wu
• Keywords: Equiaxed crystals; Multiphase flow; Centrifugal casting (silversmithing); Slag (welding)

In order to demonstrate how CFD can help scientists and engineers to better understand the fundamentals of engineering processes, a number of examples are shown and discussed. The paper covers (i) special aspects of continuous casting of steel including turbulence, motion and entrapment of non-metallic inclusions, and impact of soft reduction; (ii) multiple flow phenomena and multiscale aspects during casting of large ingots including flow-induced columnar-to-equiaxed transition and 3D formation of channel segregation; (iii) multiphase magneto-hydrodynamics during electro-slag remelting; and (iv) melt flow and solidification of thin but large centrifugal castings.