CAJ | 학술논문

结合蓄热式铝熔炼炉熔炼过程的特点，运用FLUENT UDF和FLUENT Scheme混合编程，耦合用户自定义熔化模型和燃烧器换向及燃烧量变化模型，实现了蓄热式铝熔炼炉熔炼过程的数值模拟。依据优化原则，获得了熔炼时间随影响因子的变化规律：熔炼时间随着旋流数、燃烧器倾角、空气预热温度或天然气流量的增加而缩短；熔炼时间随着燃烧器间水平夹角或空燃比的延长，先减小而后增加；熔炼时间随着燃烧器高度的增加而延长。
결합축열식려용련로용련과정적특점，운용FLUENT UDF화FLUENT Scheme혼합편정，우합용호자정의용화모형화연소기환향급연소량변화모형，실현료축열식려용련로용련과정적수치모의。의거우화원칙，획득료용련시간수영향인자적변화규률：용련시간수착선류수、연소기경각、공기예열온도혹천연기류량적증가이축단；용련시간수착연소기간수평협각혹공연비적연장，선감소이후증가；용련시간수착연소기고도적증가이연장。
According to the features of melting process of regenerative aluminum melting furnaces, a three-dimensional mathematical model with user-developed melting model, burner reversing and burning capacity model was established. The numerical simulation of melting process of a regenerative aluminum melting furnace was presented using hybrid programming method of FLUENT UDF and FLUENT scheme based on the heat balance test. Burner effects on melting process of aluminum melting furnaces were investigated by taking optimization regulations into account. The change rules of melting time on influence factors are achieved. Melting time decreases with swirl number, vertical angle of burner, air preheated temperature or natural gas flow; melting time firstly decreases with horizontal angle between burners or air-fuel ratio, then increases; melting time increases with the height of burner.