Numerical Simulation of Metal Filling into a CCM Mold Equipped with a Deflector

Аннотация

The study of molten metal flow to the mold of a continuous casting machine (CCM) is still considered to be a complex and imperfect process. This paper is one of the author’s publication series that focuses on the theoretical possibility on the motion kinetics of a liquid metal and heat fluxes in a mold under traditional casting based on: hydrodynamic theory, mathematical physics equations, and an approved numerical approach. This well-known calculation methodology makes it possible to calculate the fluxes of liquid metal motions and their temperature in the mold for the proposed method and for other methods of supplying the metal, as well as to compare the results between each other. The formulation and solution of a three-dimensional problem for determining the velocity and temperature fields in a metal supplied to a CCM mold from a submerged nozzle to a round deflector is discussed. This calculation methodology is based on a system of constitutive equations, a numerical method, a numerical scheme, and an algorithm for solving the problem. According to calculations, the hardened metal crust growing on the faces of the mold has been neglected. If traditional and proposed methods are used to objectively analyze the results and solve the problem, the same theoretical (the velocity of drawing from the mold) and the geometric parameters of a rectangular mold are taken. A patent for describing this alternative method of liquid metal supplying to a rectangular mold has been registered (No. 2018108974/02 (013808)). Some results of the numerical solution of the problem are presented, namely, schemes of liquid metal flows and the temperature thereof in various sections of the mold.