PECASE: Flow Control For Force Regularization In Large-Disturbance Environments
Abstract
The objective of this work is to apply theoretical unsteady aerodynamics and physics-based models of separated flows to control unsteady wing loading in large disturbance environments. The proposed work will provide insight into the fundamental physics of unsteady aerodynamic loading in the context of aggressive maneuvers and large-amplitude gust encounters. Following that, this work will assess potential strategies to anticipate and control for particularly disruptive gusts. The fast time response required for flow control in these environments presents a challenge, necessitating a new approach for force regularization. The proposed experiments will be used to identify the flow structures that are responsible for fast lift and moment transients, and to determine which properties of the flow disturbance most affect their evolution and the resulting air loads. This work will investigate whether certain models of unsteady flight environments (e.g., fluid jets, pitching, plunging, surging) are better models of real-life gust encounters, which parameters most affect the fundamental flow physics of the problem (e.g., Re, gust magnitude, gust shape, gust frequency), and how flow control can be applied to mitigate force transients in these environments.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Dec 05, 2016
- Source ID
- FA95501610508
Entities
People
- Anya Jones
Organizations
- Air Force Office of Scientific Research
- United States Air Force
- University of Maryland