Closed Circuit Wind Tunnel Tender in USA - 140555113

Procurement Summary

Country: USA

Summary: Closed Circuit Wind Tunnel

Deadline: 18 May 2026

Posting Date: 02 May 2026

Other Information

Notice Type: Tender

TOT Ref.No.: 140555113

Document Ref. No.: PANRSA26P0000033772

Competition: ICB

Financier: Self Financed

Purchaser Ownership: Public

Tender Value: Refer Document

Purchaser's Detail

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Tender Details

Purchase Description
Procurement of Closed-Circuit Wind Tunnel
Requirements:
• 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 6.85
millimeter (0.27-inch)-thick grooves placed at approximately 75 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 size of 101.6 millimeters by 101.6
millimeters (~4 inches by 4 inches). Test section length can vary if the design
meets the following requirements: The test section must have at least two sealable
ports or fittings for the insertion of instruments of various sizes, such as Pitot-static
tubes and hotwire anemometers. These ports or fittings must accommodate the
following instrument diameters: 4.3 mm (~0.188 in); 6.3 mm (0.25 in); 7.9 mm
(0.313 in); 9.5 mm (0.375 in); 10.1 mm (0.4 in); 12.7 mm (0.5 in); 15.9 mm (0.625
in). One port must be located 49.5 mm (1.95 in) from the inlet, centered into the
test section; the other port should be offset from this port by 37.5 mm (1.47 in).
Additionally, the test section sidewalls must be made of optical-qua...
Notice ID: panrsa26p0000033772

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: jun 02, 2026

Inactive Policy: 15 days after date offers due

Documents

 Tender Notice

Documents.zip