Numerical Investigation of Electro-magnetic Flow Control Phenomenon in a Tundish

Abstract

The liquid steel flow phenomenon in a tundish is important to improve the steel quality. It is governed by the design of the tundish and its flow control devices. Pouring chamber is the most popular flow control device used inside the tundish. Flow control using electro-magnetic forces is the latest development in this area. The present work investigates the electromagnetic flow control phenomenon in the tundish. A 3-D Magnetohydrodynamics (MHD) model was used to study the flow behavior governed by electromagnetic forces in the tundish. The innovative concept of using electromagnetic dam as a flow modifier for tundish was proposed in current work. Computational Fluid Dynamics (CFD) simulations were performed for different combinations of electromagnetic dams and results were compared with pouring chamber. The advantage of electromagnetic flow control over other mechanical devices was established through CFD simulations.

Design Optimization of a Single-Strand Tundish Based on CFD-Taguchi-Grey Relational Analysis Combined Method

“…With focus on optimization of FCD design within the tundish, engineers have carried out a large number of investigations using experimental and numeric approaches in order to address the relevant design parameters that govern the desirable performance features. The literature on tundish design is summarized in Table 1 [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24]. The aforementioned studies have led to considerable improvements in understanding various transport processes associated with tundish operations, aiming for the optimal tundish design.…”

A Simulation Study on the Flow Behavior of Liquid Steel in Tundish with Annular Argon Blowing in the Upper Nozzle

“…It also distributes liquid steel and, more importantly, facilitates the removal of inclusions and then purifies the liquid steel. Many techniques have been adopted in the tundish to remove inclusions such as retaining walls and dams, diversion walls, tundish filtering, and electromagnetic stirring [1][2][3][4]. Moreover, the argon blowing in the tundish could effectively reduce the amount of the inclusion and purify the liquid steel.…”

Influence of Subflux Turbulence Controller and Ladle Shroud Asymmetric Using on Hydrodynamic Conditions in One Strand Slab Tundish

“…Often, tundishes are equipped with ceramic filters, or special chambers to induce rotary motion [15,16]. To modify the liquid steel motion in a contactless manner, electromagnetic stirring is used [17][18][19]. One of the most common FCDs is a STC installed in the pouring zone.…”