The 0.55m Low Speed Wind Tunnel was commissioned in 1970 with a circular cross section test section. The circular test cross section was converted into a square cross section in the year 2000. The unique feature of this facility is that it can go as minimum of 0.5m/s. This tunnel is an open circuit type wind tunnel with a contraction ratio of 16:1. This tunnel is majorly used for research applications both basic and applied in nature.
Test Section size and shape |
0.55m x 0.55m x 1.90 m Square cross section |
Speed range / Mach number range |
Velocity range 0.5m/s to 40m/s |
Reynolds number range (per m) |
0.03 x 106 to 3 x 106 |
Freestream turbulence level |
< 0.2 % |
Pressure fluctuation level |
Cp variation < 0.05 |
Type of tests performed:
Test control parameters:
Instrumentation:
Data Acquisition Systems used:
PXI -1033 integrated controller PXI chassis consist of
1) PXI-6281 DAQ card (18 Bits resolution with 625KS/s M series card) connected to SCXI-1000 chassis with 1520 signal conditioning Module.
2) PXI-6533 High speed switching DIO card.
Special test rigs and test techniques developed:
Scotch yoke mechanism for precise control of the oscillating frequency and amplitude used for oscillating airfoil experiments.
Major Customers:
AR&DB, NAL’s Centre for Societal Missions and Special Technologies, ADA, Mahindra and Mahindra
Milestones achieved:
Last updated on : 13-06-2018 04:02:29pm