陈帅¹,周勇军¹,林伟振¹,史亦航¹,陶兰兰²

• 1:南京工业大学 机械与动力工程学院，江苏 南京 211816
• 2:江苏省特种设备安全监督检验研究院国家化工设备质量监督检验中心，江苏 苏州 215600

摘要(Abstract)：

为将改进型三斜叶-Rushton组合桨高效应用于实际工程，通过计算流体动力学（CFD）对装配改进型三斜叶-Rushton组合桨搅拌槽内的流场进行了模拟研究，与三斜叶-Rushton组合桨进行了对比；并通过粒子图像测速（PIV）技术研究该组合桨槽内搅拌转速n、桨叶间距C₂及离底距离C₁的变化对流场产生的影响。结果表明当转速为100 r·min^-1时能有效改善槽底和上桨叶区域的混合效果，槽内速度分布相对均匀，实验结果和模拟结果吻合效果较好；模拟结果表明改进型三斜叶桨的泵吸效果较三斜叶桨更强，能有效缩小搅拌槽底部和内壁附近的低速区域，槽内混合效果更好；实验结果表明当桨叶间距为0.25h时，槽内速度分布更合理；当离底距离为0.3h时，上桨叶区的较低速区域进一步缩小。

关键词(KeyWords)： 搅拌槽;改进型三斜叶-Rushton组合桨;流场;计算流体动力学;粒子图像测速;混合

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金（51775262）。

作者(Author): 陈帅¹,周勇军¹,林伟振¹,史亦航¹,陶兰兰²

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