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- 2017
气液螺旋环状流界面波失稳机理
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Abstract:
摘要 为揭示气液螺旋环状流界面波失稳机理，基于经典的Kelvin-Helmholtz不稳定性理论，利用双流体模型，建立螺旋涡流作用下界面波的动力学模型。通过求解界面波色散方程，给出界面失稳的准则并进行理论验证。研究表明，界面波的增长特性决定于气动力、离心力和表面张力的相互作用。其中，不同气液动压相对大小条件下，离心力对界面波稳定性存在三重影响。基于此准则条件，系统分析气流速度、旋流强度及管径对界面波增长特性的影响规律。
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