A transient model for submerged entry nozzle clogging: A coupled CFD and DEM approach

被引：0

作者：

Qiu, Zilong ^{[1
]}

Cheng, Zhongfu ^{[1
]}

Wang, Yannan ^{[2
]}

Guo, Muxing ^{[1
]}

Blanpain, Bart ^{[1
]}

机构：

[1] Katholieke Univ Leuven, Dept Mat Engn, Kasteelpark Arenberg 44 box 2450, B-3001 Leuven, Belgium

[2] Jiangsu Univ, Sch Energy & Power Engn, Zhenjiang 212013, Peoples R China

来源：

POWDER TECHNOLOGY | 2025年 / 453卷

关键词：

Submerged entry nozzle; Clogging; Discrete element method; Adhesion force; Fragmentation; CONTINUOUS-CASTING MOLD; MOLTEN STEEL FLOW; NUMERICAL-SIMULATION; NONMETALLIC INCLUSIONS; LOW-CARBON; DIELECTRIC-PROPERTIES; ALUMINA PARTICLES; CAPILLARY FORCES; COLLISION-GROWTH; TURBULENT-FLOW;

D O I：

10.1016/j.powtec.2025.120647

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Submerged entry nozzle (SEN) clogging has been a long-standing problem, especially for casting Al and Cebearing steels. The clogging is believed to be the accretion of non-metallic inclusions on the nozzle wall. In this study, the behavior of every single inclusion is numerically monitored using the CFD-DEM approach, including their deposition on and detachment from the nozzle wall. The cavity and the van der Waals forces are the main components of the adhesion force. It is found that clogging is a self-accelerating process, and it is very dependent on the adhesion force between inclusions and/or between inclusions and the nozzle wall. Due to a more significant adhesion force between Ce2O3 inclusions, less clog fragmentation happens when casting Ce2O3containing steel. The initial deposition position of Ce2O3 inclusions is lower in the nozzle than that of Al2O3 inclusions; however, the general clogging trends are similar for the two cases with monosized inclusions.

引用

页数：20

共 104 条

[71] On the deposition of particles in liquid metals onto vertical ceramic walls [J].

Ni, Peiyuan ;

Jonsson, Lage Lord Ingemar ;

Ersson, Mikael ;

Jonsson, Par Goran .

INTERNATIONAL JOURNAL OF MULTIPHASE FLOW, 2014, 62 :152-160

[72] Turbulent Flow Phenomena and Ce2O3 Behavior during a Steel Teeming Process [J].

Ni, Peiyuan ;

Jonsson, Lage Tord Ingemar ;

Ersson, Mikael ;

Jonsson, Par Goran .

ISIJ INTERNATIONAL, 2013, 53 (05) :792-801

[73] Characteristics of Inclusion Motion and Accumulation in CSP Mold [J].

Nie, Changping ;

Zhang, Xiaofeng ;

Wang, Bao ;

Sun, Yuhu ;

Liu, Qing .

ISIJ INTERNATIONAL, 2015, 55 (08) :1677-1683

[74] Physical insight into the Ergun and Wen & Yu equations for fluid flow in packed and fluidised beds [J].

Niven, RK .

CHEMICAL ENGINEERING SCIENCE, 2002, 57 (03) :527-534

[75]

Norouzi H.R., 2016, Coupled CFD-DEM modeling: formulation, implementation and application to multiphase flows

[76] BUBBLES, CAVITIES, AND THE LONG-RANGED ATTRACTION BETWEEN HYDROPHOBIC SURFACES [J].

PARKER, JL ;

CLAESSON, PM ;

ATTARD, P .

JOURNAL OF PHYSICAL CHEMISTRY, 1994, 98 (34) :8468-8480

[77] Influence of void fraction calculation on fidelity of CFD-DEM simulation of gas-solid bubbling fluidized beds [J].

Peng, Zhengbiao ;

Doroodchi, Elham ;

Luo, Caimao ;

Moghtaderi, Behdad .

AICHE JOURNAL, 2014, 60 (06) :2000-2018

[78] Fouling and its mitigation in silicon microchannels used for IC chip cooling [J].

Perry, Jeffrey L. ;

Kandlikar, Satish G. .

MICROFLUIDICS AND NANOFLUIDICS, 2008, 5 (03) :357-371

[79] Influence of argon gas bubbles and non-metallic inclusions on the flow behavior in steel continuous casting [J].

Pfeiler, C ;

Wu, M ;

Ludwig, A .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2005, 413 :115-120

[80]

Rackers K., 1995, 78 STEELM C P

← 2 3 4 5 6 7 8 9 10 11 →