High-Energy, High-Pulse-Rate Light Sources for Enhanced Time-Resolved Tomographic PIV of Unsteady & Turbulent Flows
Abstract
The Defense University Research Instrumentation Program (DURIP) is designed to improve the capabilities of U.S. Universities to conduct research and to educate scientists and engineers in selected technical areas of importance to national defense. DURIP funding provides for the acquisition of research equipment and instrumentation for this purpose. This proposal is for the purchase of a rapidly-pulsed, high energy Nd:YLF laser and associated optics that will make possible the discovery of new fluid physics in turbulent flows that are relevant to future Army aviation applications. The laser and optics will be integrated into the substantial infrastructure that already exists at Georgia Tech to produce a world-class time-resolved tomographic Particle Image Velocimetry (PIV) facility, thereby enabling groundbreaking experiments to test new dynamical models of turbulence based on special unstable exact solutions of the Navier-Stokes equations. The experiments complement ongoing theoretical/numerical work on the turbulent flow between rotating cylinders. (ARO Contract W911NF-15-1-0471, ÒDynamics of turbulent Taylor-Couette flow via exact Navier-Stokes solutions,Ó PI: Roman O. Grigoriev, Georgia Tech). In short, the light source and optics represent a modest investment that should return a trove of research results uncovering novel ways to understand unsteady/turbulent flows in numerous practical applications and natural settings.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jan 12, 2017
- Source ID
- W911NF1610281
Entities
People
- Michael F. Schatz
Organizations
- Army Contracting Command
- Georgia Tech Research Corporation
- United States Army