GOALI: Dynamic Coupling of Synthetic Jet Actuators and Flow Fields

拟议中的目标调查的目标是了解“合成射流激励器”与它们可能影响的流场之间的动态耦合。在这种情况下，合成喷气致动器是一种装置，它将嵌入机翼表面下方，产生微小的空气喷流，与机翼上流动的空气相互作用，从而在机翼的性能上产生预期的变化，如减少阻力。实现这一目标的结果将是设计、开发和优化用于主动流动控制应用的合成喷气致动器所需的见解和指导方针，如固定翼和旋转翼飞机的减阻和提升升力面性能。最初的模型验证实验将在平板上进行，首先使用单一射流，然后使用一系列合成射流。然后，结合学生们在波音公司度过暑假进行部件研究的时间，我们将开发用于阵列的合成喷气执行器，并针对对我们的行业合作伙伴至关重要的两个不同的流场进行优化控制：翼型上方的流动和直升机机身部件的上方的流动。该提案的更广泛影响包括学术界和工业界之间充满活力的伙伴关系，这将激励学生，并将促进技术转让。学生们将与行业合作伙伴Pi Clingman密切合作，他将每年访问校园几次，并参加每周一次的电话会议和网络会议。学生们还将有多个机会在波音实验室工作。最后，通过实现拟议的主动流量控制功能来实现下一代飞机的社会和经济影响是巨大的

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