CAREER: Flow Physics of Aerodynamic Forcing in Unsteady Environments

职业：不稳定环境中空气动力强迫的流动物理学

• 批准号: 1553970
• 负责人: Anya Jones
• 金额: $ 50.43万
• 依托单位: University of Maryland, College Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-06-01 至 2021-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1553970&HistoricalAwards=false
• 关键词: CAREER; Flow; Physics; Aerodynamic; Forcing

PI: Jones, AnyaProposal Number: 1553970The proposed research is focused on the experimental investigation of the fundamental fluid dynamics phenomena that occur when a wing is subject to gusty flows. In unsteady flow, the gusts result in an additional buoyancy force (i.e., the added mass effect), as well as an unknown change in the flow structure and aerodynamic forcing due to the interactional aerodynamics. The PI has established experimental capabilities that allow her to explore these issues in detail. The results of this research could have an impact on the design of air vehicle wings and wind energy turbines. Previous work on transient flows has focused on a wing driven in unsteady motion rather than the more realistic problem of a steady wing encountering sudden disturbances. The proposal is about identifying known and unknown mechanisms and phenomena, and about designing and conducting careful experiments to elucidate the unknown. For the flow regimes with large disturbances, a framework for a low-order model of separated flow will also be constructed, completing the approach to investigating these phenomena. There are also plans to reach out to K-12 students by demonstrating that science is exciting, fun, and to leverage outreach efforts with organizations like Women in Engineering.

PI：琼斯，Anyaproposal编号：1553970拟议的研究重点是对机翼受到阵风流动时发生的基本流体动力学现象的实验研究。在不稳定的流动中，阵风导致额外的浮力（即增加的质量效应），以及由于相互作用的空气动力学而引起的流动结构和空气动力学强迫的不明变化。 PI建立了实验能力，使她能够详细探讨这些问题。 这项研究的结果可能会影响空中车翼和风能涡轮机的设计。 以前关于瞬态流动的工作集中在以不稳定运动驱动的机翼上，而不是稳定的机翼突然干扰的更现实的问题。该建议是关于识别已知和未知的机制和现象，以及设计和进行仔细的实验​​以阐明未知的实验。对于具有较大干扰的流程度，还将构建用于低阶模型的框架，以完成研究这些现象的方法。还计划通过证明科学令人兴奋，有趣，并利用与工程女性这样的组织进行外展工作，与K-12学生联系。