Vortex dynamics, with the possibility of efficient flow control, is explored in this study based on the new introduced vortex definition and identification system of Liutex. With the six core elements of vortex identification, including (1) absolute strength, (2) relative strength, (3) local rotational axis, (4) global rotational axis, (5) vortex core size and (6) vortex boundary, provided by the Liutex system, it is possible to numerically devise strategies, primarily by introducing additional source terms in Navier-Stokes equations, which we call Liutex force field model here, to control the vortex regions. Two methodologies of centripetal force model and counter-rotation force model are preliminarily investigated in a cavitating flow around two-dimensional Clark-Y hydrofoil. It is found that Liutex based models are capable of illustrating the vortex dynamics and possibly strengthening or weakening the vortices.

基于新引入的Liutex涡流定义和识别系统，本研究探讨了可能进行有效流量控制的涡流动力学。利用涡旋识别的六个核心要素，包括（1）绝对强度，（2）相对强度，（3）局部旋转轴，（4）整体旋转轴，（5）涡旋核心尺寸和（6）涡旋边界。通过Liutex系统，可以通过主要在Navier-Stokes方程中引入额外的源项（在这里称为Liutex力场模型）来控制涡流区域，从而对策略进行数值设计。在二维Clark-Y水翼型绕空化流中，初步研究了向心力模型和反向力模型的两种方法。