MP 330UH SUBSONIC WIND TUNNEL, Upstream Fan, High Speed
GENERAL DESCRIPTION

The wind tunnel is an open circuit upstream fan type, designed for studying the subsonic aerodynamics. It is to be used with optional accessories and models below.

A dual an axial flow fans delivers air through a diffuser, aluminum tube flow straightener, three wire mesh screens and a high contraction ratio section to ensure uniform velocity across the transparent test section. The diffuser and contraction sections have a high quality internal finish to minimize the boundary effects. The fan impeller blades are of an aerofoil design cast aluminum to ensure maximum aerodynamic efficiency and minimum turbulence. The fan speed is adjustable by an inverter.

Four equally spaced static pressure taps are connected to a manifold to minimize effects from a model and air speed is indicated by an inclined manometer and a calibration graph. Models are mounted on two components load cell support with digital display for measurement of drag and lift. Model holder can be rotated to allow quick change on the angle of incidence, this angle is indicated on an angular scale.

The wind tunnel is mounted on a steel table on wheels.

Instruction manual is also included.

TYPICAL EXPERIMENTS
  • Pressure and velocity measurement.
  • Estimation of drag coefficients of various bodies, e.g. sphere, hemisphere, disc, plate, streamlined shape etc.
  • Estimation of drag lift and pitching coefficients of an aerofoil.
  • Pressure distribution around an aerofoil or a cylinder.
  • Effects of instability of a “flutter Wing”.
  • Investigation of boundary layer at a flat plate by measuring total head distribution.
  • Stream lines visualization using a smoke generator.
  • Wakes behind models.
TECHNICAL DATA
Fan:
 - Diameter 630 mm
 - Impeller Single stage, aerofoil aluminum blade
Contraction area ratio 7:1
Test Section 300 mm x 300 mm x 600 mm long, transparent on three sides
Maximum air velocity Over 60 m/s
Measuring instruments
 - Water manometer Twin type
  - Wind velocity Contraction section differential pressure with inclined water manometer and velocity calibration graph (to be used with inclined water manometer above)
 - Sensors with digital display
  - Lift and drag Two component balance with model holder for measurement of lift and drag
Power supply 380 V, 3 Ph, 50 Hz. Other power supply is available on request.
OPTIONAL EQUIPMENT
OPTIONAL ACCESSORIES
Part No. Part Name
MP 100-011M Multi port differential pressure digital display 0-450 mm water instead of inclined water manometer.
MP 330-003A Three component balance with digital display and model holder for measurement of lift drag and pitching instead of two component balance.

 

OPTIONAL MEASURING ACCESSORIES
Part No. Part Name
MP 330-005 Velocity (differential pressure) digital display.
MP 330-110 Anemometer for velocity measurement telescopic handle
MP 330-111 Angle digital display for model angular position.
MP 330-114 Multitube inclined water manometer
MP 330-114D 16 points differential pressure sensor with sequential readings (To be used with computer)
MP 330-121 Pitot-static probe stainless steel
MP 330-122 Yaw probe three tube type with clamp
MP 330-125 Wake survey rake
MP 330-130 Smoke generator set
Additional smoke fluid

 

OPTIONAL MODELS FOR LIFT AND DRAG
Part No. Part Name
Models For A Study Of Lift Drag And Pitching Include:
MP 330-011 Sphere plastics
MP 330-012 Hemisphere plastics
MP 330-013 Circular disc plastics
MP 330-014 Circular ring plastics
MP 330-015 Square plate plastics
MP 330-016 Vane plastics
MP 330-017 Cylinder plastics
MP 330-018 Streamlined shape plastics
MP 330-019 Aerofoil aluminium
MP 330-019L Aerofoil long aluminium
MP 330-025 Model air plane plastics
MP 330-026 Model automobile plastics
MP 330-030 Aerofoil with slot and flap aluminium
MP 330-030L Aerofoil with slot and flap long

 

OPTIONAL MODELS AND ACCESSROIES FOR INDIVIDUAL STUDY
Part No. Part Name
MP 330-050 Flutter wing aluminium aerofoil on steel frame
MP 330-053 Pressure wing aluminium
MP 330-055 Pressure cylinder plastics
MP 330-057 Boundary layer plate with probe.
MP 330-150 Computer Interface
Sensors with computer interface unit for key data acquisition instead of analog data measuring instruments.
This consists of a computer (separately supplied) computer interface unit pressure sensor rotary encoder and multiport differential pressure sensors for:
  • Control of wind velocity
  • Display of:
    • Wind velocity lift drag pitching moment and angle of attack
    • Coefficient of lift drag and pitching moment
    • Pressure distribution

 

Net (unassembled) Shipping Dimensions WxLxH 95x 385 x 130 cm.
Net Weight Approx. 650 kg.