Numerical Simulation of Bubble and Velocity Distribution in a Furnace

Abstract

An industrial furnace, such as a blast furnace, molten salt furnace and a basic oxygen furnace, is a popular reactor, where the distribution of liquid, flow pattern of the fluid and the velocity of the fluid determine the energy distribution and chemical reaction in the reactor. Taking a furnace as the research object, this paper studies the effects of different inlet velocities, liquid densities and viscosity on bubble and velocity distribution. A three-dimensional mathematical model of the furnace is set up by a numerical simulation, and the volume-of-fluid (VOF) method is used to study the behavior of bubbles. The accuracy of the simulation parameters selected in the simulation calculation is verified by comparing the simulation with the experimental results. The findings show that an excessive or too small an inlet velocity will lead to an uneven distribution of chlorine in the furnace, therefore, an inlet velocity of about 30 m/s is more appropriate. In addition, changing the liquid density has little effect on the bubble and velocity distribution while choosing the appropriate liquid viscosity can ensure the proper gas holdup and fluidity of chlorine in the furnace.

A Coupled CFD-DEM Study on the Effect of Basset Force Aimed at the Motion of a Single Bubble

“…Experiments were carried out under five different flow rates: 132 L/h, 176 L/h, 220 L/h, 264 L/h and 308 L/h. For more experimental details, see previous research [ 33 ].…”

Flow Field Study of Large Bottom-Blown Lead Smelting Furnace with Numerical Simulation

“…Due to the invisibility and high temperature of the molten pool melting process, numerical and physical simulations are two effective alternative research methods [10][11][12][13][14][15]. With the development of computer technology and the improvement of theory related to computational fluid dynamics (CFD), the application of numerical simulation technology in the field of metallurgical multiphase flow is becoming more and more widespread, which also provides technical support for the study of large bottomblowing furnaces [16][17][18][19][20][21][22][23].…”