...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Chemical and Biochemical Engineering Quarterly >Numerical Study on Bubble Dynamics and Two-Phase Frictional Pressure Drop of Slug Flow Regime in Adiabatic T-junction Square Microchannel
【24h】

Numerical Study on Bubble Dynamics and Two-Phase Frictional Pressure Drop of Slug Flow Regime in Adiabatic T-junction Square Microchannel

机译：绝热T型交界处的泡沫动力学和两相摩擦压降的数值研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this study, bubble dynamics and frictional pressure drop associated with gas liquid two-phase slug flow regime in adiabatic T-junction square microchannel has been investigated using CFD. A comprehensive study on the mechanism of bubble formation via squeezing and shearing regime is performed. The randomness and recirculation profiles observed in the squeezing regime are significantly higher as compared to the shearing regime during formation of the slug. Further, effects of increasing gas velocity on bubble length are obtained at fixed liquid velocities and simulated data displayed good agreement with available correlations in literature. The frictional pressure drop for slug flow regime from simulations are also obtained and evaluated against existing separated flow models. A regression correlation has also been developed by modifying C-parameter using separated flow model, which improves the prediction of two-phase frictional pressure drop data within slug flow region, with mean absolute error of 10 %. The influences of fluid properties such as liquid viscosity and surface tension on the two-phase frictional pressure drop are also investigated and compared with developed correlation. The higher liquid viscosity and lower surface tension value resulted in bubble formation via shearing regime.
机译：在该研究中，使用CFD研究了与气体液体两相块SLUG流量相关的泡沫动力学和摩擦压降。进行了通过挤压和剪切制度的泡沫形成机制的综合研究。在挤压状态下观察到的随机性和再循环曲线与夹板形成期间的剪切方案相比显着更高。此外，在固定的液体速度下获得增加气体速度的效果，并且模拟数据显示了与文献中可用相关的良好一致性。还获得了模拟的摩擦压力下降，并针对现有的分离流模型进行了评估。还通过使用分离的流动模型来修改C参数来开发回归相关性，这改善了SLUG流动区域内的两相摩擦压降数据的预测，其平均误差为10％。还研究了流体性质如液体粘度和表面张力在两相摩擦压降上的影响，并与相关的相关性进行了比较。较高的液体粘度和下表面张力值通过剪切状态导致气泡形成。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号