Numerical Prediction and Experimental Verification of Thermal Stratification during Holding in Pilot Plant and Production Ladles

A 3-dimensional CFD-model has been developed to simulate the natural convection flow in ladles. Qualified measurements of temperature and velocities in 107 and 7 tonne ladles have been made to verify the model. The downward convection flow at the ladle wall has been studied using radioactive isotope...

Full description

Saved in:
Bibliographic Details
Published in:ISIJ International 1999/07/15, Vol.39(7), pp.715-721
Main Authors: Grip, Carl Erik, Jonsson, Lage, Jönsson, Pär, Jonsson, Kjell Olof
Format: Article
Language:English
Subjects:
Applied sciences
continuous temperature measurement
Exact sciences and technology
fluid flow
Iron and steel making
ladle
liquid steel
measurement accuracy
Metals. Metallurgy
numerical simulation
Other methods of steel making and pure ironmaking
Production of metals
radioactive tracer experiments
thermal stratification
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A 3-dimensional CFD-model has been developed to simulate the natural convection flow in ladles. Qualified measurements of temperature and velocities in 107 and 7 tonne ladles have been made to verify the model. The downward convection flow at the ladle wall has been studied using radioactive isotopes and the thermal stratification has been studied by means of continuous temperature measurements. The experimental techniques are complex and additional numerical simulations have been carried out to study the effect of the measurement technique on the measurement error. The result indicates that the measurements are of sufficient accuracy for the validation. The measurements are compared to predictions from the numerical model. The main conclusion is that the theoretical CFD model gives a very accurate estimation of the temperature distribution during holding.
ISSN:0915-1559
1347-5460
1347-5460
DOI:10.2355/isijinternational.39.715