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Teaching suggested applications*

-        Study of a fan as a function of rotational speed

-        Comparison of a centrifugal fan and an axial fan

-        Measurement of electrical power to the motor, determination of efficiency.

-        Determination of pressure losses.

-        Use of a column multi-manometer for pressure measurements.

-        Measurement of pressures, flow rates and velocities for several points in the seam.

-        Use of a pitot tube.

-        Verification of the Bernoulli equation.

-        Determination of the Reynolds number.

-        Highlighting aerodynamic lines.

-        Aerodynamic studies, measurements of lift, drag and pitch moment as a function of the incidence and air velocity on a profile.

-        Study of the effects of stall on lift and on the pressures applied to the wing

The above educational applications are possible within the framework where all options are ordered with the VEA100 base bench.

Description

TheVEA 100bench  is an aerodynamic tunnel for studying aeraulic systems. It can be connected to anaxial fan VEA 200 or centrifugal fan VEA 300(not included). It is possible to vary the speed of rotation of the fan and determine its characteristics according to the speed, suction and discharge pressures at the fan. The test vein and the fan are disconnectable, this allows to change the type of fan (axial or centrifugal). This bench will also measure electrical power, determine engine efficiency, measure pressure losses using a water column multi-manometer and measure air velocity with a pitot tube.

It is also possible to study wing profiles using a three-component balance  withVEA 400 force transducers (not included) with drag, lift and pitch measurement as a function of wing incidence and flow (two wings are provided, symmetrical and asymmetrical).

The VEA500 option is used to study pressure profiles on a symmetrical wing, including visualizing the effect of stall on wing lift. This option includes a water column pressure gauge displaying pressures at 18 measuring points spread over the intrados and extrados.

The rugged design of this equipment makes it perfectly suited for use in schools. Its anodized aluminum structure on multidirectional wheels with brakes gives it great robustness and flexibility of integration into your premises. The chassis is split into two parts with a flexible sleeve connection. The manufacture of this equipment complies with the European machinery directive.

1. Suction cone
- PVC stabilization convergent
- protective grid at the entrance

2. Transparent measuring vein
-access hatch in the upper part

3. Divergent, square round painted steel duct
-connection to the fan by flexible sleeve

4. Multi-tube column pressure gauge
-transparent tubes with red dye
-rear graduation 0-490mm

5. Pitot tube
-height-adjustable position in the vein
-measurement of the dP by electronic sensor, display on the screen of the box

6. Electrical box
- Box containing all standard safety (power disconnector, emergency stop button, thermal and differential circuit breaker, indicators, start buttons ...)
- the box includes a touch screen for displaying measurements
- Fan speed adjustment by potentiometer
- Display of the fan rotation speed on the screen
- Display of the power consumed by the fan motor on the screen

7. Chassis
-Support frame in screwed anodized aluminum profile
-chassis equipped with six directional casters with brake

• Power supply : 400 VAC – 50 Hz – 20 A
• Electrical supply type : 3 phases + Neutral +Earth
• Dimensions:  (LxWxH mm): 3700 x 785 x 1300
• Weight (Kg): 300