GOALI: Dynamic Coupling of Synthetic Jet Actuators and Flow Fields

GOALI：合成射流致动器和流场的动态耦合

• 批准号: 0729454
• 负责人: Alison Flatau
• 金额: $ 45万
• 依托单位: University of Maryland, College Park
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-09-01 至 2012-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0729454&HistoricalAwards=false
• 关键词: GOALI; Dynamic; Coupling; Synthetic; Jet

The goal of the proposed GOALI investigation is to understand the dynamic coupling between "synthetic jet actuators" and the flow fields they can influence. Synthetic jet actuators are devices that in this case will be embedded just below the surface of a wing and produce small jets of air that interact with air flowing over the wing to produce a desired change in the performance of the wing, such as a reduction in drag. The outcome from achieving this goal will be insights and guidelines needed for design, development and optimization of synthetic jet actuators for active flow control applications such as drag reduction and lifting-surface performance enhancement in fixed and rotary-wing aircraft. Initial model validation experiments will be conducted on flows over flat plates, first with a single jet and then with an array of synthetic jets. Then, in conjunction with students spending time over summers conducting components of their research at Boeing, we will develop synthetic jet actuators tailored for use in arrays and optimized for control of two distinct flow fields of importance to our industry partner: flow over an airfoil and flow over helicopter airframe components. The Broader Impacts of the proposal include a dynamic partnership of academia and industry that will inspire students and will facilitate technology transfer. Students will work closely with industry co-PI Clingman, who will visit campus several times a year and participate in weekly conference calls and web meetings. Students will also have multiple opportunities to work in Boeing labs. Lastly, the societal and economic impact of enabling next generation aircraft by realizing the proposed active flow control capabilities is enormous

拟议的GOALI研究的目标是了解“合成射流致动器”和它们可以影响的流场之间的动态耦合。合成射流致动器是这样的装置，在这种情况下，该装置将嵌入机翼的表面正下方，并产生与流过机翼的空气相互作用的小空气射流，以产生机翼性能的期望变化，例如阻力的减小。 实现这一目标的结果将是设计、开发和优化合成射流致动器所需的见解和指导方针，这些致动器用于主动流动控制应用，例如固定翼和旋翼飞机中的减阻和升力面性能增强。初始模型验证实验将在平板上的流动上进行，首先使用单个射流，然后使用合成射流阵列。然后，与学生一起花费时间在夏季进行他们在波音公司的研究组件，我们将开发合成喷气致动器，用于阵列，并优化控制两个不同的流场的重要性，我们的行业合作伙伴：流过机翼和直升机机身组件的流量。 该提案的更广泛影响包括学术界和工业界的动态伙伴关系，这将激励学生并促进技术转让。学生将与行业合作PI Clingman密切合作，他每年将访问校园几次，并参加每周电话会议和网络会议。学生还将有多次机会在波音实验室工作。最后，通过实现所提出的主动气流控制能力来实现下一代飞机的社会和经济影响是巨大的