Procurement Summary
Country: USA
Summary: Closed Circuit Wind Tunnel
Deadline: 15 Jul 2026
Posting Date: 30 Jun 2026
Other Information
Notice Type: Tender
TOT Ref.No.: 144240467
Document Ref. No.: PANRSA-26-P-0000-037658
Competition: ICB
Financier: Self Financed
Purchaser Ownership: Public
Tender Value: Refer Document
Purchaser's Detail
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Login to see detailsTender Details
The U.S. Army Contracting Command-Redstone, Operations, Services, & Training Division, plans to obtain information to serve as market research to help identify potential sources that can provide a brand name purchase of one (1) Closed-Circuit Wind Tunnel that will be used by USATA Engineers and Technicians along with a Laser Doppler Velocimetry (LDV) system, a primary standard for air velocity measurement in a wind tunnel. Use of this standard will allow measurement of much lower air speed than is currently achievable and an overall reduction in lab measurement uncertainty. This item shall be delivered to the Army Primary Standards Laboratory (APSL), Building 5435 Fowler Road, Redstone Arsenal, AL 35898. The Closed-Circuit Wind Tunnel shall include the following specifications or equivalent (if not brand name):
This wind tunnel must be a closed circuit, as the operation of an LDV system requires seed particles to be added to the air stream - in this case, a substance called Bis(2-ethylhexyl) subacute. The wind tunnel thus needs to be fitted with a 3/8-inch Swagelok bulkhead fitting placed upstream of the test and transitional sections.
This wind tunnel must have a maximum operating speed of approximately 50 meters per second (~9900 feet per minute). The test section walls must have 25.908 millimeter (~1.02-inch)-thick grooves placed at approximately 90 percent of the total length of the test section as measured from the entrance in which specialized nozzle restriction plates can be affixed to adjust the operating range and achieve an air speed of 0.15 meters per second (~30 feet per minute). The typical turbulence intensity across this operating range must be less than 1 percent, where turbulence intensity is defined as the root-mean-square of velocity fluctuations divided by the average test section velocity.
This wind tunnel must have a test section height and width of 60.96 centimeters by 60.96 centimeters (~24 inches by 24 inches). Test section lengt...
Notice ID: panrsa-26-p-0000-037658
Department/Ind. Agency: dept of defense
Sub-tier: dept of the army
Office: w6qk acc-rsa
Product Service Code: 6636 - environmental chambers and related equipment
NAICS Code: 541715 - Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
Inactive Dates: jul 30, 2026
Inactive Policy: 15 days after response date
Documents
Tender Notice
Documents.zip