| Summary: | 碩士 === 國立成功大學 === 材料科學及工程學系碩博士班 === 90 === This thesis proposes a program to simulate the gas-liquid two phase flow in smelt reduction process, and would analysis the fluid flowing phenomena induced by bottom gas injection process of water mold. The core module is based on computational fluid dynamics technique-- SOLA-MAC which can deal with the transient flow with free surface, and then incorporated with the continues equation and Navier-stokes Momentum equations. The program which is applied the proper boundary condition to can modeling the fluid flow phenomena which the gas and liquid phases will affect each other.
The developed mathematical model is then tested on a smelting reduction process, and the furnace system is a cylinder with gas blowing from the center of the bottom. The influence between fluid flowing and gas floating would be observed. In addition, the calculation results would be compared with the experiment results from papers. However, these results show that with the increasing flowing rates, the gas releasing frequency gets higher and the strike phenomena between bubbles takes place more frequently.
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