Unsteady Aerodynamics of Airfoils Embedded in Canonical Complex Flows Relevant to the Wake of Aircraft Carriers
Abstract
The proposed effort seeks to (1) develop fundamental knowledge of the unsteady forces and moments acting on airfoils embedded in complex approach flows representative of those encountered in the ~burble~ environment, and (2) improve understanding of the flow physics leading to the generation of the observed forces and moments. The proposed work will develop a physical setup that will be used to understand the fundamental physics of the aerodynamics of steady and unsteady airfoils subjected to complex, yet canonical, approach flow conditions exhibiting temporal and spatial variations of similar fundamental nature to the wake of an aircraft carrier. Specifically, the proposed experimental setup will possess provisions enabling the imposition of an approach stream with customizable shear profile and/or unsteady up/downwash. An experimental campaign will focus on two problems initially, one involving an airfoil traveling in the cross-stream direction in the presence of steady approach shear flow, and the other consisting of an airfoil embedded in an approach flow containing unsteady up/downwash. In a third, optional, year, an approach flow combining the features of shear and unsteady up/downwash will be utilized.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Sep 23, 2016
- Source ID
- N000141612760
Entities
People
- Ahmed Naguib
Organizations
- Michigan State University
- Office of Naval Research
- United States Navy