Closed Circuit Wind Tunnel Tender

• Country: USA
• Summary: Closed Circuit Wind Tunnel
• UST Ref No: 140555113
• Deadline: 18 May 2026
• Financier: Self Financed
• Purchaser Ownership: Government
• Tender Value: Refer Document
• Notice Type: Tender
• Document Ref. No.: PANRSA26P0000033772
• Purchaser's Detail:
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• Description:
• 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...
• Documents:

 Tender Notice

Documents.zip