Li_et_al_chin+¬s_2007

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STUDY OF INCREASING THE SWIRLING FLOW IN
A CENTRIFUGAL FLOW TUNDISH BY
USING BENDING NOZZLE
LI Baokuan� QI Fengsheng� WANG Fang� LIU Jie
School of Materials and Metallurgy� Northeastern University� Shenyang ������
Correspondent� LI Baokuan� professor� Tel� �������������� E�mail� lbk�����	���com
Supported by National Natural Science Foundation of China �No�
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Manuscript received ����������� in revised form ����������
ABSTRACT Upon the problem that the swirling 	ow in centrifugal 	ow tundish is not enough
the present work searches a way which can reinforce the swirling 	ow in rotation chamber without the
application of external energy and power� The way is to change the height potential of molten steel in
ladle into the horizontal out	ow kinetics by using the bending nozzle� The physical and mathematical
models have been developed to verify that the swirling 	ow can be reinforced and the increment of
maximum velocity exceeds ��
 of the original velocity produced only by the magnetic �eld application�
KEY WORDS centrifugal 	ow tundish
 swirling 	ow
 bending nozzle
 electromagnetic force
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