【摘要】 本文由理论分析得到了三种固粒存在形态下旋转射流失稳模型的扰动增长率及相关修正瑞利稳定性准则。根据该准则,对三种不同固粒存在形态下气-固流动模型在不同扰动性质和固粒属性下,由计算得到了对应的增长率曲线,给出了固粒属性及扰动性质对旋转射流稳定性影响的重要结论。为工程中控制不同情况下的旋转射流场及后续发展提供了理论依据。更多还原

【Abstract】 This paper is concerned with the stability of gas-particle two-phase swirling jet. Through theoretical analysis, with an instability model with two controling parameters, the growth rate of disturbances and the related modified Reyleigh criterion of stability are obtained for three different form of noncontinuous distribution of suspended particles. On this basis, the effects of properties of suspended particles and disturbances on the stability of the two-phase swirling jet are analyzed and the curves of flow rate for different cases are presented, which lays the foundation for engineering applications and further investigation of two-phase swirling jet.更多还原