Combined Electromagnetic Tomography for Determining Two-phase Flow Characteristics in the Submerged Entry Nozzle and in the Mold of a Continuous Casting Model

被引：57

作者：

Wondrak, Thomas ^{[1
]}

Eckert, Sven ^{[1
]}

Gerbeth, Gunter ^{[1
]}

Klotsche, Konrad ^{[1
]}

Stefani, Frank ^{[1
]}

Timmel, Klaus ^{[1
]}

Peyton, Anthony J. ^{[2
]}

Terzija, Natasa ^{[2
]}

Yin, Wuliang ^{[2
]}

机构：

[1] Helmholtz Zentrum Dresden Rossendorf, D-01314 Dresden, Germany

[2] Univ Manchester, Sch Elect & Elect Engn, Manchester M60 1QD, Lancs, England

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE | 2011年 / 42卷 / 06期

关键词：

VELOCITY RECONSTRUCTION; CONDUCTING FLUIDS; DYNAMICS;

D O I：

10.1007/s11663-011-9553-y

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This article describes experiments on the combined determination of the distribution of liquid metal and argon in the submerged entry nozzle (SEN) and of the flow in the mold of a small-scale physical model of a continuous slab caster. For visualizing the metal distribution in the SEN, mutual inductance tomography (MIT) is applied, while the flow in the mold is determined by contactless inductive flow tomography (CIFT). The results of the latter are validated in part by ultrasonic Doppler velocimetry (UDV). Accompanying measurements provide information about the levels in the tundish and in the mold, as well as on the pressure in the SEN. Depending on the gas flow rate, various flow regimes are identified, among them pressure and mold level oscillations, transitions between double and single vortex flows, and transient single port ejections.

引用

页码：1201 / 1210

页数：10

共 19 条

[1] FLOW DYNAMICS IN THIN SLAB CASTER MOLDS
HONEYANDS, T
HERBERTSON, J
[J]. STEEL RESEARCH, 1995, 66 (07): : 287 - 293
[2] Investigation of the gas-liquid flow in a stopper rod controlled SEN
Klostermann, Jens
Chaves, Humberto
Schwarze, Ruediger
[J]. STEEL RESEARCH INTERNATIONAL, 2007, 78 (08) : 595 - 601
[3] Effect of liquid steel flow pattern on slab quality and the need for dynamic electromagnetic control in the mould
Kunstreich, S
Dauby, PH
[J]. IRONMAKING & STEELMAKING, 2005, 32 (01) : 80 - 86
[4] Hardware and software design for an electromagnetic induction tomography (EMT) system for high contrast metal process applications
Ma, X
Peyton, AJ
Higson, SR
Lyons, A
Dickinson, SJ
[J]. MEASUREMENT SCIENCE AND TECHNOLOGY, 2006, 17 (01) : 111 - 118
[5] Development of multiple frequency electromagnetic induction systems for steel flow visualization
Ma, X.
Peyton, A. J.
Higson, S. R.
Drake, P.
[J]. MEASUREMENT SCIENCE AND TECHNOLOGY, 2008, 19 (09)
[6] Dynamics of two-phase downwards flows in submerged entry nozzles and its influence on the two-phase flow in the mold
Ramos-Banderas, A
Morales, RD
Sánchez-Pérez, R
García-Demedices, L
Solorio-Diaz, G
[J]. INTERNATIONAL JOURNAL OF MULTIPHASE FLOW, 2005, 31 (05) : 643 - 665
[7] SJOSTROM U, 2007, 2 INT WORKSH MEAS TE
[8] Stefani F, 2004, PHYS REV E, V70, DOI 10.1103/PhysRevE.70.056306
[9] A contactless method for velocity reconstruction in electrically conducting fluids
Stefani, F
Gerbeth, G
[J]. MEASUREMENT SCIENCE AND TECHNOLOGY, 2000, 11 (06) : 758 - 765
[10] Velocity reconstruction in conducting fluids from magnetic field and electric potential measurements
Stefani, F
Gerbeth, G
[J]. INVERSE PROBLEMS, 1999, 15 (03) : 771 - 786

← 1 2 →