Dynamics of Fluid Mixing in Time-Dependent Viscous Wakes, Jets, and Shear Layers

随时间变化的粘性尾流、射流和剪切层中的流体混合动力学

• 批准号: 9160104
• 负责人: William Browning
• 金额: $ 5万
• 依托单位: Applied Mathematics Inc
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-01-01 至 1992-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9160104&HistoricalAwards=false
• 关键词: Dynamics; Fluid; Mixing; Time; Dependent

This project will develop software to simulate flows and configurations to give insight into the dynamic mixing processes involved in wakes, jets and shear layers. In particular numerical code will be developed for flows of importance in aerodynamics. By basing the family of models for two-dimensional viscous, incompressible flows on a Lagrangian formulation of fluid motion, the dynamics of mixing can be studied as a function of the Reynolds number. Viscosity is introduced by allowing the vorticity to diffuse as in the exact self-similar solution to the Navier-Stokes equations describing the viscous growth of an isolated vortex core.

该项目将开发软件来模拟流动， 配置，以深入了解动态混合过程 涉及尾流、射流和剪切层。 特别是 将为重要流量开发数字代码， 空气动力学 通过建立二维粘性流体的模型族， 不可压缩流在流体运动的拉格朗日公式上， 混合的动力学可以作为一个函数来研究， 雷诺数 粘度是通过允许 涡扩散的精确自相似的解决方案， 描述粘性增长的Navier-Stokes方程 孤立的涡核