电磁场的方向和动力学控制着悬垂液滴内的平流特性
Electromagnetic field orientation and dynamics governs advection characteristics within pendent droplets
摘要：
本文报道了电场和磁场方向对盐溶液悬滴内部平流模式和强度的支配作用。文献显示溶质平流驱动基于盐的液滴内的循环细胞。流动可视化和测速表明，所施加的场的方向控制循环速度的增强/减小和液滴内部循环的方向性。此外，应当注意，虽然磁场增大循环速度，但电场导致循环速度的劣化。运用电磁流体力学的概念，提出了一种基于斯托克斯流函数的场介导速度的数学模型。该模型被发现揭示的作用和程度的依赖于执政的哈特曼，斯图尔特，雷诺数和增田数。观察到的理论预测与实验的平均时空速度是很好的协议。目前的研究结果可能有很强的影响，在微尺度电和/或磁流体力学。
英文摘要：
The article reports the domineering governing role played by the direction of electric and magnetic fields on the internal advection pattern and strength within salt solution pendant droplets. Literature shows that solutal advection drives circulation cells within salt based droplets. Flow visualization and velocimetry reveals that the direction of the applied field governs the enhancement/reduction in circulation velocity and the directionality of circulation inside the droplet. Further, it is noted that while magnetic fields augment the circulation velocity, the electric field leads to deterioration of the same. The concepts of electro andmagnetohydrodynamics are appealed to and a Stokesian stream function based mathematical model to deduce the field mediated velocities has been proposed. The model is found to reveal the roles of and degree of dependence on the governing Hartmann, Stuart, Reynolds and Masuda numbers. The theoretical predictions are observed to be in good agreement with experimental average spatio-temporal velocities. The present findings may have strong implications in microscale electro and/or magnetohydrodynamics.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
