CAREER: Flow Physics of Aerodynamic Forcing in Unsteady Environments

PI: Jones， anya提案编号：1553970提议的研究重点是对机翼受到阵风气流时发生的基本流体动力学现象进行实验研究。在非定常流中，阵风会产生额外的浮力（即额外的质量效应），以及由于相互作用的空气动力学而导致的流动结构和空气动力的未知变化。PI已经建立了实验能力，使她能够详细探索这些问题。这项研究的结果可能会对飞行器机翼和风力涡轮机的设计产生影响。以前关于瞬态流动的研究主要集中在非定常运动的机翼上，而不是更现实的稳定机翼遇到突然扰动的问题。该提案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来阐明未知。对于具有大扰动的流型，还将构建低阶分离流模型的框架，以完成研究这些现象的方法。他们还计划向K-12的学生展示科学是令人兴奋的、有趣的，并利用与工程女性等组织的推广努力。

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.