Acquisition of Time Resolved Three Component Particle Image Velocimetry & Laser Induced Phosphorescence (3C PIV-LIP) System for Turbulence and Flow Transitions Studies
Abstract
(a) Lead Agency to evaluate the proposal: Office of Naval Research (ONR), Division 331 (b) Technical Area(s): Ship Systems and Engineering Research, Hydrodynamics (c) Program Officer(s): Dr. Thomas C. Fu PIV-LIP measurement techniques are used throughout a wide variety of applications from physical, to chemical and in biological processes. Time resolved three component PIV- LIP thermometry enables in situ measurements of velocity, temperature and pressure to be carried out with minimal disturbances and with high spatial and temporal resolution, which is an unparalled advantage when measuring dynamical systems such as those in any fluid flow. Acquisition of a 3C PIV-LIP system can therefore yield important experimental data that will enable fundamental understanding of the vortex dynamics and turbulence flow field in fluid flows commonly encountered in hydrodynamics and aerodynamics. An in-depth understanding of the physics involved in highly turbulent flows will enable the advancement of fundamental sciences and of a technologies and provide deeper insight into the engineering implications in devices that encounter such flows. In spite of the numerous years of work carried out in understanding turbulent flows, there remain many unanswered questions with regard to even the basic physical mechanisms of turbulence and the associated heat transfer phenomena. The effects of three dimensionality in unsteady vortex shedding and boundary layers haven t been understood completely. Turbulence closure models are still hampered by the inherent difficulties in modeling such turbulent and unsteady phenomena. In an effort to gain deeper insight into the physical mechanism of such complicated flows, the PI proposes the acquisition of a 3C PIV-LIP system that can enable the measurement of detailed three dimensional velocity and temperature field and provide deeper understanding of the turbulence distribution and the associated vortex dynamics. Toward this end, funds are requested for the acquisition of the 3C PIV-LIP system. The acquisition of the proposed instrumentation will will significantly help the University of Texas - Rio Grande Valley (UTRGV) transition towards being a research intensive institution. The instrumentation will facilitate leading-edge studies in turbulence and associated heat transfer mechanisms and will greatly enhance the research infrastructure of UTRGV. It will also significantly expand our research ties with academic institutions and industry and facilitate collaborations in the field of unsteady hydrodynamics/aerodynamics. Since UTRGV is primarily a Hispanic serving minority institution (about 85% of the students are from the Hispanic community) with a large undergraduate population the undergraduate students will have intense involvement in the activities of the projects undertaken through the acquisition of the proposed equipment. The instrumentation will also help the PI attract graduate students (M.S.) to conduct state-of-the-art research. The PI will directly supervise the students and ensure that the environment for them to flourish is available.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Sep 11, 2018
- Source ID
- W911NF1710347
Entities
People
- Isaac Choutapalli
Organizations
- Army Contracting Command
- Office of the Secretary of Defense
- University of Texas Rio Grande Valley