Compressible Vortex Dynamics and Turbulence: Reconnection, Core Dynamics, and Fine-Scale Organization

直接数值模拟（DNS）将用于研究可压缩性对湍流剪切流中几种涡旋动力学现象的影响。研究的重点是涡旋重连、涡旋核动力学以及有组织涡旋结构与无组织背景湍流的相互作用。本研究的一个新特点是分析了初始条件对数值可压缩流动模拟的影响。该研究不仅影响了高速流动技术，也影响了高速流动和其他湍流的数值模拟技术，使其更加精确和经济。

Direct Numerical Simulation (DNS) will be carried out in a study of the effect of compressibility on several vortex dynamics phenomena in turbulent shear flow. The study is focused on vortex reconnection, vortex core dynamics, and the interaction between organized vortex structures and disorganized background turbulence. A novel feature of the research is an analysis of the effect of initial condition on numerical compressible flow simulations. This research impacts both the technology of high speed flows and the technology of simulating these and other turbulent flows numerically with greater accuracy and economy.