Time Resolved PIV System for High Resolution Flow Measurements
Abstract
This proposal requests funds for the acquisition of a state of the art, large field of view, highspeedparticle image velocimetry (P"IV) system. The proposed advanced flow measurement systemwill be used to better understand the underlying physics of various proble"ms that are driven byunsteady, three-dimensional separated flows. This system will be used in multi-camera, multiresolution,time-r""esolved forms, as well as in a stereoscopic time-resolved configuration. It isanticipated that an unprecedented four orders of magn"itude in flow length scales can be resolved atunparalleled temporal resolution. This new system will significantly augment current PIV instrumentationcapabilities available at Embry-Riddle Aeronautical University (ERAU). The funds willsupport existing and future DoD-relevant research in ERAU~s new subsonic wind tunnel facility;this wind tunnel has many unique operational and testing featu"res, and is specifically designedaround a PIV instrumentation requirement. The combination of the proposed PIV system integratedwi"th the infrastructure of the new wind tunnel will provide measurement capabilities thatare unique in terms of the quality of measurements and broad range of new problems that can bestudied. A primary application of the equipment is to study the turbulent downstr"eam aerodynamicwake produced from the superstructure of ships, i.e., the airwake. This research will be undertakenin the controlle"d conditions of the wind tunnel to better understand how the airwake contributesto the adverse flow environment encountered by helicopters operating from the decks of ships.The proposed equipment will also be to understand and exploit the interactions within turbulentboundary layers for reducing skin friction drag. Several full-time graduate students in AerospaceEngineering will use the proposed instrumentation to accomplish their M.S. and Ph.D. research.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Sep 29, 2017
- Source ID
- N000141712853
Entities
People
- John Leishman
Organizations
- Embry–Riddle Aeronautical University
- Office of Naval Research
- United States Navy