A One-Dimensional Model of Viscous Liquid Jets Breakup
A One-Dimensional Model of Viscous Liquid Jets Breakup
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DOI：
10.1115/1.4004909
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发表时间：
2011-11
影响因子：
2
通讯作者：
Mahmoud A. Ahmed;M. Abou-Al-Sood;A. Ali
中科院分区：
文献类型：
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作者：
Mahmoud A. Ahmed;M. Abou-Al-Sood;A. Ali
对不同的Ohnesorge数（Z）、波数（K）和扰动幅值（λ 0）条件下低速毛细液体射流的破碎过程进行了数值研究。建立了求解粘性液体射流控制方程的隐式有限差分格式。结果预测了液体射流的演化和破碎，扰动的增长率，破碎的时间和位置，以及主液滴和卫星液滴的尺寸。结果表明，扰动增长率、破裂时间以及主液滴和卫星液滴的大小主要取决于波数和Ohnesorge数。结果与现有的，实验数据和分析分析进行了比较。比较表明，较好的协议，可以得到较简单的一维模型。
The breakup process of a low speed capillary liquid jet is computationally investigated for different Ohnesorge numbers (Z), wave numbers (K), and disturbance amplitudes (ζo ). An implicit finite difference scheme has been developed to solve the governing equations of a viscous liquid jet. The results predict the evolution and breakup of the liquid jet, the growth rate of disturbance, the breakup time and location, and the main and satellite drop sizes. It is found that the predicted growth rate of disturbance, the breakup time, and the main and satellite drop sizes depend mainly on the wave numbers and the Ohnesorge numbers. The results are compared with those available, experimental data and analytical analysis. The comparisons indicate that good agreements can be obtained with the less complex one-dimensional model.