Modeling Wall Film Formation and Breakup Using an Integrated Interface-Tracking/Discrete-Phase Approach
Modeling Wall Film Formation and Breakup Using an Integrated Interface-Tracking/Discrete-Phase Approach
复制标题
使用集成界面跟踪/离散相方法对壁膜形成和破裂进行建模
DOI：
10.1115/1.4002019
复制
发表时间：
2011
影响因子：
1.5
通讯作者：
M. Herrmann
中科院分区：
文献类型：
--
作者：
M. Arienti;L. Wang;M. Corn;Xiaoyi Li;M. Soteriou;T. Shedd;M. Herrmann
我们提出了一个计算听话的模型，膜的形成和破碎的基础上，从实验和直接数值模拟的数据。这项工作是先前研究的自然延续，其中基于来自液体界面的相对低分辨率跟踪的局部流动信息对初级雾化进行建模[Arienti和Soteriou，2007，“Dynamics of Pulsed Jet in Crossflow，“ASME Paper No.GT2007 -27816]。这里提出的用于膜形成的子模型由用精细水平集网格方法获得的直接数值模拟支持[Herrmann，2008，“A Balanced Force Refined Level Set Grid Method for Two-Phase Flows on Unstructured Flow Solver Grids，”J. Comput.物理，227页。2674-2706]。通过精心设计的实验验证了整体方法[Shedd等人，2009年，“液体射流破碎冲击空气射流”，第四十七届AIAA航空航天科学会议。Paper No. AIAA-2009-0998]，其中液体射流在矩形通道中被横流雾化，使得膜形成在与喷射孔相对的壁上。膜最终在通道的下游出口处破裂。与相位多普勒粒子分析仪的数据和非侵入式膜厚点测量完成这项研究的比较。
We propose a computationally tractable model for film formation and breakup based on data from experiments and direct numerical simulations. This work is a natural continuation of previous studies where primary atomization was modeled based on local flow information from a relatively low-resolution tracking of the liquid interface [Arienti and Soteriou, 2007, "Dynamics of Pulsed Jet in Crossflow, " ASME Paper No. GT2007-27816]. The submodels for film formation proposed here are supported by direct numerical simulations obtained with the refined level set grid method [Herrmann, 2008, "A Balanced Force Refined Level Set Grid Method for Two-Phase Flows on Unstructured Flow Solver Grids," J. Comput. Phys., 227, pp. 2674-2706]. The overall approach is validated by a carefully designed experiment [Shedd et al., 2009, "Liquid Jet Breakup by an Impinging Air Jet, " Forty-Seventh AIAA Aerospace Sciences Meeting. Paper No. AIAA-2009-0998], where the liquid jet is crossflow-atomized in a rectangular channel so that a film forms on the wall opposite to the injection orifice. The film eventually breaks up at the downstream exit of the channel. Comparisons with phase Doppler particle analyzer data and with nonintrusive film thickness point measurements complete this study.