Fourth International Symposium on Turbulence and Shear Flow Phenomena
DOI: 10.1615/TSFP4
PRECONDITIONED LARGE-EDDY SIMULATIONS FOR TUNDISH FLOWS
pages 871-876
DOI: 10.1615/TSFP4.1460
ABSTRACT
Large-eddy simulations (LES) of a continuous tundish flow are carried out to investigate the turbulent flow structure and vortex dynamics. The numerical computations are performed by solving the viscous conservation equations for compressible fluids. An implicit dual time stepping scheme combined with low Mach number preconditioning and a multigrid accelerating technique is developed for LES computations. The method is validated by comparing data of turbulent pipe flow at Reτ = 1280 and cylinder flow at Re = 3900 at different Mach numbers with experimental findings from the literature. Finally, the characteristics of the flow in a one-strand tundish is analyzed.