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Notre Dame University，Notre-Dame，印第安纳州航空航天和机械工程系Thomas Corke博士和Jordan Sociadal of Sciential of Sciention of Sciential of Sciential of B. Irbid irbid，Jordan，Jordan。 他们计划开发依赖时间的DNS代码，以对弱离子化的等离子执行器进行建模，以增强其设计并扩大其在高速应用中的流体动态控制潜力。这项工作建立在巴黎圣母院（Notre Dame）的流量控制应用中的弱离子化等离子体执行器的广泛实验开发和数值建模为基础。这项工作将扩展最近开发的稳定，不可压缩的DNS代码，以开发一个时间依赖性模拟，该模拟将检查流动对冲动执行器输入的瞬时响应以及相移输入对执行器阵列的影响。模拟的结果将与巴黎圣母院的同伴实验的结果进行比较。目的是进一步优化执行器设计，并确定其在不稳定操作中的性能的限制。范围：本研究的当前应用包括与直升机撤退刀片摊位有关的前沿分离控制；在涡轮喷射发动机的低压涡轮阶段的涡轮叶片上的尾随分离控制；翼上的主动提升；控制边界层不稳定性在高马赫数下；以及高度扫掠的翅膀上的3-D边界层中的湍流转换控制。 该项目的结果将用于优化执行器设计并确定执行器性能的限制，并对不稳定的流量振幅和相位响应特别感兴趣。 美国研究生将参加巴黎圣母院的国际研究项目。