US-Jordan Cooperative Research: Unsteady DNS Modeling of Weakly Ionized Phased Plasma Actuators

美国-约旦合作研究：弱电离相控等离子体致动器的非稳态 DNS 建模

• 批准号: 0323216
• 负责人: Thomas Corke
• 金额: $ 1.74万
• 依托单位: University of Notre Dame
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-07-15 至 2006-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0323216&HistoricalAwards=false
• 关键词: US; Jordan; Cooperative; Research; Unsteady

0323216 CorkeDescription: This award supports a cooperative research project between Dr. Thomas Corke, Department of Aerospace and Mechanical Engineering at Notre Dame University, Notre-Dame, Indiana and Dr. Osamah Haddad, Department of Mechanical Engineering, Jordan University of Science and Technology, Irbid, Jordan. They plan to develop a time-dependent DNS code to model weakly ionized phased plasma actuators as a means of enhancing their design and extending their potential for fluid dynamic control in high-speed applications. This work builds on extensive experimental development and numerical modeling of weakly ionized plasma actuators for flow control applications at Notre Dame. The work will extend a recently developed steady, incompressible, DNS code to develop a time-dependent simulation that would examine the transient response of the flow to impulsive actuator inputs as well as the effect of phase-shifted inputs to arrays of actuators. The results of the simulations will be compared to those of companion experiments at the University of Notre Dame. The objective is to further optimize actuator designs and to determine limits on their performance in unsteady operation. Scope: The present applications of this research include leading-edge separation control related to helicopter retreating-blade stall; trailing-edge separation control on turbine blades in the low-pressure turbine stage of turbo-jet engines; active lift enhancement on wings; control of boundary layer instabilities at high Mach numbers; and turbulence-transition control in 3-D boundary layers on highly swept wings. The results of the project will be used to optimize actuator designs and determine limits on the actuator performance, with a special interest on the unsteady flow amplitude and phase response. A U.S. graduate student will participate in this international research project at Notre Dame University.

0323216 CorkeDescription：该奖项支持印第安纳州圣母大学航空航天与机械工程系托马斯·科克博士和约旦伊尔比德约旦科技大学机械工程系奥萨马·哈达德博士之间的合作研究项目。 他们计划开发一个时间依赖的DNS代码来模拟弱电离相控等离子体执行器，作为增强其设计和扩展其在高速应用中的流体动力学控制潜力的一种手段。这项工作建立在广泛的实验发展和数值模拟弱电离等离子体致动器的流量控制应用在圣母院。这项工作将扩展最近开发的稳定，不可压缩，DNS代码开发一个随时间变化的模拟，将检查流的瞬态响应脉冲致动器输入以及相移输入的致动器阵列的效果。模拟结果将与圣母大学的同伴实验结果进行比较。其目的是进一步优化致动器的设计，并确定其在非稳定运行的性能限制。适用范围：这项研究目前的应用包括：与直升机后退叶片失速有关的前缘分离控制;涡轮喷气发动机低压涡轮机级中涡轮机叶片的后缘分离控制;机翼上的主动增升;高马赫数时边界层不稳定性的控制;以及大后掠机翼上三维边界层的连续转捩控制。 该项目的结果将用于优化致动器的设计，并确定对致动器性能的限制，特别是对非定常流的振幅和相位响应。 一名美国研究生将参加圣母大学的这一国际研究项目。