High-Speed Volumetric Measurement System for Spatially and Temporally Resolved Flow and Surface Meas
Abstract
Project Summary/AbstractThis proposal describes the need for acquisition of a High-Speed Volumetric Measurement System for Spatiall,y and Temporally Resolved Flow and Surface Measurements instrument that form a cornerstone for a modern Advanced Laser Diagnostics, for Flow Measurements Laboratory at North Dakota State University (NDSU). This instrument would represent a step forward to perfo,rm advanced aerodynamics research with high fidelity related to Department of Defense interests that we are currently engaged in thr,ough grants from U.S. Navy (ONR), Air Force (AFRL), and NASA agencies. The instrument diagnostics capabilities will be used to furth,er our research in fundamental aerodynamics, airfoil morphing and smart-material flow-control and flow-structure interaction diagnos,tics, numerical simulations and turbulence modeling validation, in a series of projects related to flow processes occurring in scien,ce and engineering having high fluctuations and complex transient phenomena. In addition to enhancing these crucial research project,s, the instrument would be integrated in the undergraduate and graduate curriculum of NDSU science and engineering departments, and,into North Dakota State Universitys successful outreach programs.The instrument comprises a high-repetition-rate laser coupled with, four high-speed cameras that allow capturing high-quality flow properties with high spatial and temporal resolution details in a tr,uly four-dimensional space -4D (x, y, z, t). Its high-power pulses (15 mJ/pulse) allow for volumetric illumination, its short dur,ations (<10 nsec) allow for freezing-in-time the target motions and capture instantaneous imaging, and its high-repetition rates (up, to 20 kHz) allow for following flow and surface events in real time. This is a significant improvement over the traditional systems, which are typically limited to planar views (2D) and/or low repetition rates (not time-resolved); this enforces the suitability a,nd opportuneness ofthis laser system to perform diagnostics in 4D. Both, flow characteristics (such as velocity and its derived pro,perties from particle image velocimetry PIV) and surface characteristics (such as pressure from lifetime pressure sensitive pain,ts PSP) can be gathered and used to generate prediction models in real-time, training genetic algorithms for data analysis and sys,tem parameters control, and validate theoretical models and computer simulations. Such instrument would allow to enhance current NDS,U research with high-fidelity and scientific quality that is essential in many of our ongoing projects with U.S. Navy (ONR), Air For,ce (AFRL), and NASA, to produce state-of-the-art publications, and making us more competitive in securing continuation and further g,rant proposals with the Federal agencies, industry, etc. In the following project narrative, the benefits and logistics of the prop,osal instrument will be describedThis abstract is publicly releasable
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Mar 05, 2022
- Source ID
- N000142212211
Entities
People
- Jordi Estevadeordal
Organizations
- North Dakota State University
- Office of Naval Research
- United States Navy