A MATHEMATICAL MODEL OF DROPLET GENERATION, MOVEMENT AND HEAT TRANSFER IN BOF
cLI Baowei; HE Youduo(Baotou Univevsity of Iron Steel Technology; Baotou 014010);SAHAI Y(Ohio Staie Universily; U.S.A.)(Manuscript received 1994-05-30; in revised form 1994-12-19)
Cite this article:
cLI Baowei; HE Youduo(Baotou Univevsity of Iron Steel Technology; Baotou 014010);SAHAI Y(Ohio Staie Universily; U.S.A.)(Manuscript received 1994-05-30; in revised form 1994-12-19). A MATHEMATICAL MODEL OF DROPLET GENERATION, MOVEMENT AND HEAT TRANSFER IN BOF. Acta Metall Sin, 1995, 31(16): 145-151.
Abstract A general mathematical model to represent droplet generation, movement and heat transfer in basic oxygen steelmaking furnaces (BOF) has been developed. Based on the investigation of gas flow, combustion and heat transfer in the converter, the authors introduce some distribution functions which control the generation of droplets. Monte-Carlo method was used to simulate randomly generated droplets(size, initial position and initial velocity). The droplet movement was calculated under the Langrangian framework. Heat exchange and temperature of droplets were calculated on its movement trace. Finaly, total droplet behavior were statistically described by some important physical parameters, such as,droplet average residence time in the gas, average maximum rising height as well as average amount of heat transfer from the gas to the metal bath.This model is characterized by the combination of probability statistics and differential equations to describe the behaviour of droplet, and it is believed to be very close to the actual problem described. It will also be beneficial for study other physical and chemical behavior of the droplet in the converter. As an example of using this model,the droplet behavior was researched in the 180 t BOF.(Correspondent: LI Baowei, associate professor, Baotou Universily of Iron and Steel Technology, Baotou014010)
JIN Junze; WANG Zongting; ZHENG Xianshu; YAO Shan (Engineering Research Center of Foundry; Dalian University of Technology; Dalian 116024)Correspondent: JIN Junze; professor; Tel & Fax: (0411)4709443(H);E-mail: jinjunze@gingko. dlut. edu. cn. STUDY ON THE SIMULATION OF SOLIDIFICATION STRUCTURE[J]. 金属学报, 1998, 34(9): 928-932.
GUAN Kezhi; FAN Bailin; ZHOU Jihua(University of Science and Technology Beijing; Beijing 100083)(Manuscript received 1995-10-30; in revised form 1996-03-26). FLOW STRESS OF BRASS AT HOT DEFORMATION[J]. 金属学报, 1996, 32(7): 749-754.
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SHENG Dongyuan; NI Mansen; DENG Kaiwen; LIU Jiaqi; GAN Yong; XIAO Zeqiang (National Research & Engineering Center of Continuous Casting Technology;Gentral Iron and Steel Research Institute; Ministry of Metallurgical industry;Beijing 100081)(Manuscript received 1995-11-09; in revised form 1996-04-17). MATHEMATICAL MODEL OF FLUID FLOW,TEMPERATURE CONTROL AND INCLUSION BEHAVIOUR IN CONTINUOUS CASTING TUNDISH[J]. 金属学报, 1996, 32(7): 742-748.
