论文标题
多相流的液滴本地线积分
Droplet-Local Line Integration for Multiphase Flow
论文作者
论文摘要
流，条纹和途径的线积分广泛使用，并且流行于可视化单相流量。在多相流中，即流体所组成的，例如液体和气态相，这些技术还可以提供对液滴和韧带的内部流程的宝贵见解，从而对其动力学进行了。但是，由于这种结构倾向于充当实体，因此高转化速度和旋转速度通常会掩盖其细节。作为一种补救措施，我们提出了一种使用原始速度场的分解来取消转化和旋转速度零件，以及适应路径和条纹线条的原始速度场的分解。通常，由此产生的积分线较短且纠结较小，从而简化了他们的分析。我们演示并讨论了我们在两相流数据中液滴上的方法的实用性，并可视化采用字形的上下文的移除速度零件。
Line integration of stream-, streak-, and pathlines is widely used and popular for visualizing single-phase flow. In multiphase flow, i.e., where the fluid consists, e.g., of a liquid and a gaseous phase, these techniques could also provide valuable insights into the internal flow of droplets and ligaments and thus into their dynamics. However, since such structures tend to act as entities, high translational and rotational velocities often obfuscate their detail. As a remedy, we present a method for deriving a droplet-local velocity field, using a decomposition of the original velocity field removing translational and rotational velocity parts, and adapt path- and streaklines. Generally, the resulting integral lines are thus shorter and less tangled, which simplifies their analysis. We demonstrate and discuss the utility of our approach on droplets in two-phase flow data and visualize the removed velocity parts employing glyphs for context.
