JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE) ›› 2018, Vol. 48 ›› Issue (1): 89-95.doi: 10.6040/j.issn.1672-3961.0.2017.057

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The numerical simulation of two-phase flow distribution characteristics in T-tube

WANG Danhua, ZHANG Guanmin*, LENG Xueli, XU Mengna, HAN Yuanyuan   

  1. School of Energy and Power Engineering, Shandong University, Jinan 250061, Shandong, China
  • Received:2017-02-19 Online:2018-02-20 Published:2017-02-19

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Abstract: Uneven distribution of gas-liquid two-phase flow in T-tube was easy to cause bias flow and uneven heating in heat exchangers. To optimize the gas-liquid two-phase flow in T-tube, the simulation about influences of flow parameters and tubes geometric structure on distribution of two-phase flow characteristics in T-tube was carried out by FLUENT. It was found that higher volume fraction of liquid phase and slower inlet velocity, and a smaller diameter of liquid drops facilitate even distribution of fluid. Meanwhile, the elbow structure was better than a straight tube at joints of branch tubes, the inlet velocity had most obvious influence on flow distribution, the difference of three units in speed could result in around 10% variation in volume fraction ration between two outlets. The results showed that change the flow parameters and tubes geometric structure correspond could optimize fluid flow in T-tube effectively.

Key words: uniform fluid distribution, flow parameters, geometric structure, numerical simulation, gas-liquid two-phase flow

CLC Number: 

  • TK121
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