SATPC0038848 Tab 04 4 SOW.pdf
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- Streamline Pro Anemometer Chassis and Streamware Pro Software. Federal contract opportunity
- Solicitation number
- 80NSSC25907702Q
About this file
This Statement of Work (SOW) details NASA's procurement of a Streamline Pro Constant Temperature Anemometer (CTA) chassis and Streamware Pro processing software from Dantec Dynamics to upgrade the existing hotwire anemometry system for the LTV branch at NASA Glenn Research Center (GRC). The system will be used for turbulent flow measurements in multiple wind tunnels, including the 9x15 Low-speed Wind Tunnel and Aeroacoustic Propulsion Lab, supporting NASA's Advanced Air Transport Technology (AATT) and Commercial Supersonic Transport (CST) projects.
Specific research activities include studying turbulent flow fields behind unducted turbofan fan blades in FY26 in partnership with GE Aerospace, and examining turbulent jet streams and boundary layers for supersonic commercial transport vehicle nozzle characterization. The performance period runs from initial equipment checkout on 10/01/2025 through 09/30/2026, with the potential for future testing in FY27 and beyond. The hotwire anemometry technique will enable detailed velocity measurements in 1, 2, and 3-dimensions, providing insights into mean velocity, turbulence intensity, Reynolds Stresses, and turbulent heat flux for air-breathing propulsion applications.
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| File | Type | Posted |
|---|---|---|
| SATPC0038848 Tab 07 Capability Statement Commercial.pdf |
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STATEMENT OF WORK
The intended purchase is for a Streamline Pro Constant Temperature Anemometer (CTA) chassis and Streamware Pro processing software manufactured by Dantec Dynamics. This procurement will upgrade the existing hotwire anemometry system for the LTV branch. The system will be utilized for various test campaigns involving turbulent flow measurements in the 9x15 Low-speed Wind Tunnel (LSWT), 8x6 Supersonic Wind Tunnel (SWT), and Aero-acoustic Propulsion Lab (AAPL) at NASA GRC. Hotwire anemometry utilizes fine wire sensors (1-5 micron in diameters) suspended between two prongs capable of measuring fluctuating flow fields at high temporal resolution. The technique will be used to measure mean velocity and turbulence intensity in 1, 2 and 3-dimensions. In addition to turbulence intensity, the technique can provide higher order turbulence statistics such as Reynolds Stresses and turbulent heat flux in various air-breathing propulsion applications.
The research activities are supported under NASA’s Advanced Air Transport Technology (AATT) and Commercial Supersonic Transport (CST) project under the AAVP program. In FY26, the system will be used to study turbulent flow fields behind the fan blades of unducted turbofans in the 9x15 LSWT. Detailed velocity measurements in two and three dimension will be carried out using various single and multi-sensor probes. The results will be crucial for advanced understanding of the aeroperformance of unducted single fans in partnership with GE aerospace.
Also, in early 2026, the system will be used in NASA AAPL to study turbulent jet streams and boundary layers for advanced understanding of jet plumes produced by novel nozzles that are relevant for supersonic commercial transport vehicles. The plume characteristics have implications on thrust performance and noise radiation signature of such nozzles.
1. Place of Performance
9x15 Low-Speed Wind Tunnel (LSWT) and Aeroacoustic Propulsion Lab (AAPL)
2. Period of Performance Test time will vary and will be guided by programmatic requirements. Initial equipment checkout is scheduled for 10/01/2025 and the first phase of testing will occur between 11/01/2025 and 09/30/2026. Initial set of results will further determine future testing dates for FY 27 and beyond.
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