Quantitative kHz to MHz Frame Rate Flow Diagnostics for Aerodynamic Ground Test Facilities, Phase I

Metadata Updated: February 28, 2019

The proposed Phase I SBIR program will study the feasibility of building next-generation burst-mode laser diagnostics that will enable unparalleled planar imaging capabilities for quantitative analysis of flow parameters, such as velocity, temperature, and species concentration in large-scale hypersonic flow facilities, including short run duration "impulse" facilities. In particular, the instrumentation would provide the unique capability for measurements of multiple parameters at data collection rates as high as ~1 MHz with flexible wavelength and interpulse spacing for quantitative velocimetry and thermometry. During the Phase I, the proposal team will study the feasibility of developing burst-mode Nd:YAG technology with programmable temporal output while pumping a wavelength-agile UV OPO for multi-line fluorescence imaging. This requires innovation of the burst-mode pump laser to allow dual-pulse seeding, an appropriate chain of laser amplifiers, and a narrowband OPO designed for pulse-pair operation and rapid wavelength switching. Proof-of-concept demonstrations of NO molecular tagging velocimetry (MTV) and two-line NO PLIF will be accomplished in a laboratory scale high-speed flow facility (up to Mach 5). Finally, the feasibility of performing high frame rate (~50 kHz) imaging in high enthalpy impulse facilities using Rayleigh scattering will also be evaluated. This program will enable prototype development of a next generation ultra-high frame rate imaging system for high-speed flows, demonstration tests in NASA facilities, and the potential delivery of a prototype system to NASA during the Phase II.

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Public: This dataset is intended for public access and use. License: U.S. Government Work

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Dates

Metadata Created Date August 1, 2018
Metadata Updated Date February 28, 2019

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date August 1, 2018
Metadata Updated Date February 28, 2019
Publisher Space Technology Mission Directorate
Unique Identifier TECHPORT_8135
Maintainer
TECHPORT SUPPORT
Maintainer Email
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Harvest Object Id 225f6170-8d46-4269-a208-2ce490edf471
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2010-07-01
Homepage URL https://techport.nasa.gov/view/8135
License http://www.usa.gov/publicdomain/label/1.0/
Data Last Modified 2018-07-19
Program Code 026:027
Source Datajson Identifier True
Source Hash 9c6c2f1a58fd16c3878b2ad7bac1c5c350d5fc7c
Source Schema Version 1.1

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