Experimental Turbomachinery Laboratory
Facilities
1. A cascade Tunnel with a sweeping row of wake-generating cylinders upstream
- Variable incident mechanism
- End and side wall bleed
- Low inlet turbulence level
- Variable speed motors
- Five identical blades
- End passage bleed
Specifications:
Test section size : 610mm X 230mm
Test section velocity : 15 m/s
Cascade inlet flow angle : 0° to 43°
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2. A General purpose Tunnel
- Low turbulence level
- Variable speed motors
- Transparent test section
Specifications:
Test section size : 178mm X 324mm
Test section velocity : 3 - 20 m/s
Maximum pressure drop: 25mm of wc
Inlet Turbulence Level: 0.65%
Contraction: 3:1
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Measuring Instuments
1. A cascade Tunnel with a sweeping row of wake-generating cylinders upstream
- Dual Power 135mJ Laser
- 15 Hz frequency
- Motorized Attenuator with Light Guide Arm of 2100mm
- Variable speed motors
- 4MP CCD Camera with filter is used for instantaneous flow measurements.
- Acquisition Software: Dynamic studio with POD, Matlab link, DMD Add-on and Tecplot loader with two user's license.
- 3D traverse: 610x610x610 mm.
- HP Z600 workstation enables the desired measurements.
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2. System for turbulence measurements
- Water Cooled 6W Argon-Ion Laser with beam expanders (400mm and 800mm).
- BSA Flow Software with Tecplot loader, advanced graphic add-on along with spectrum/correlation add-on.
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3. Hot Wire Anemometer
- A six Channel CTA with temperature compensation.
- Probes used for measurements:
Single Wire probes
X- Wire probes
Boundary Layer Probes:
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4. Electronically scanned pressure sensor
- Miniature Scanner with 32 channels that measures pressure in the range of ±
2500Pa.
- Electronic sensor multiplexed through a single on board instumentation allows samples the data at the rate of 20kHz.
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