Modelling of Supersonic Oxygen Jet Injection inside Steelmaking Furnace
Computational fluid dynamics (CFD) model was developed along with an experimental study to investigate the supersonic jet behaviour at steelmaking temperature and the jet-liquid interactions.The CFD model showed that the coherent length of the supersonic jet is higher at steelmaking temperature(1700K) due to the reduction in jet spreading rate at such high ambient temperature.A new temperature corrected k-epsilon turbulence model was proposed to take into account the reduced growth rate of turbulent shear layer at higher ambient temperature.A shrouding combustion flame surrounding was found to decrease the turbulent shear stress and vorticity at the jet periphery which in turn increases the coherent length of the jet further and gives the advantage of installing the nozzle far from the liquid surface.The CFD results were validated against the available experimental data.It was concluded from the experimental and CFD study that an increase in blowing number theory fails to predict the droplet generation rate during penetrating mode.The cavity shape and cavity surface area should be taken into account along with the jet momentum to accurately predict the droplet generation rate.
Morshed Alam Geoffrey Brooks Jamal Naser
Faculty of Engineering and Industrial Sciences, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia
国际会议
The 4th Australia-China-Japan Joint Symposium on Iron and Steelmaking(第四届中日澳钢铁冶金学术会议)
沈阳
英文
184-192
2012-11-03（万方平台首次上网日期，不代表论文的发表时间）