采用三维照相法对垂直圆管内稀疏层流泡状流充分发展段的相分布进行了实验研究.得到了8个流动工况下均匀尺寸气泡形成的泡状流的空泡率分布以及6个流动工况下非均匀尺寸气泡形成的泡状流的总体和大、小气泡组各自的空泡率分布.实验结果表明当气泡组的平均直径小于约3.5 mm时,其空泡率分布在管壁附近出现尖峰;当气泡组的平均直径大于约3.5 mm时,其空泡率分布的尖峰移向管中心;气泡尺寸对泡状流的相分布有重要影响.
参考文献
| [1] | Antal S P;Lahey R T Jr;Flaherty J E .Analysis of Phase Distribution in Fully Developed Laminar Bubbly Twophase Flow[J].International Journal of Multiphase Flow,1991,17:635-652. |
| [2] | V. E. Nakoryakov;O. N. Kashinsky;V. V. Randin;L. S. Timkin .Gas-liquid bubbly flow in vertical pipes[J].Journal of Fluids Engineering: Transactions of the ASME,1996(2):377-382. |
| [3] | Kashinky O N;Timkin L S;Cartellier A .Experimental Study of 'Laminar' Bubbly Flows in a Vertical Pipe[J].Experiments in Fluids,1993,14:308-314. |
| [4] | Kataoka I;Ishii M;Serizawa A .Local Formulation and Measurements of Interfacial Area Concentration in Twophase Flow[J].International Journal of Multiphase Flow,1986,12:509-529. |
| [5] | 宋蔷 .垂直管道内泡状流运动的理论和实验研究[D].清华大学,1999. |
| [6] | Liu T J .Bubble Size and Entrance Length Effects on Void Development in a Vertical Channel[J].International Journal of Multiphase Flow,1993,19:99-113. |
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