Modeling and Numerical Simulation of the Gas‐Induced Breakup of Liquid Threads Stretched by Gravity
Modeling and Numerical Simulation of the Gas‐Induced Breakup of Liquid Threads Stretched by Gravity
复制标题
重力拉伸液丝气体诱导断裂的建模和数值模拟
DOI：
10.1002/ceat.201100138
复制
发表时间：
2011
影响因子：
2.1
通讯作者：
P. Walzel
中科院分区：
文献类型：
--
作者：
S. Gramlich;A. Mescher;M. Piesche;P. Walzel
具有窄分布液滴尺寸的喷雾可以通过根据拉伸液体线的破碎原理操作的雾化系统来产生。取决于工艺参数的平均液滴尺寸对于可靠的工艺设计至关重要。因此，引入了一个用于描述层流拉伸液丝破碎过程的模型。为了预测平均液滴尺寸，考虑了重力引起的螺纹延伸和气体引起的扰动。数值结果和实验结果表现出令人满意的一致性。
Sprays with narrowly distributed drop sizes can be produced by atomization systems operating according to the principle of breakup of stretched liquid threads. The mean drop size depending on the process parameters is of major interest for a reliable process design. Thus, a model for the description of the breakup process of stretched liquid threads with laminar flow is introduced. Thread extension by gravity and gas-induced disturbances are considered in order to predict the mean droplet size. The numerical and experimental results exhibit satisfying accordance.