本文采用Navier-Stokes方程和K-ε两方程模型对不同负载时家用空调贯流风机内部偏心涡的演化规律进行了数值模拟.研究表明,随着出口外界负载的增加,贯流风机内部偏心涡增大,偏心涡卷吸的区域增强;同时偏心涡的涡核不断向远离蜗舌的方向移动.而在相同的出口背压下,提高或降低贯流风机的转速,偏心涡的涡核位置几乎不发生变化.
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