Voltmeter- Shows how much voltage is supplied to the fan. Necessary during experimentation, and finding the relationship between voltage supplied, and the velocity of output airflow.

Mastercraft #52-0060-2

Airfoil- Based on a NACA 6324 airfoil profile, with additions like a hole at the maximum pressure difference point. Interchangeable boxes with various holes can be placed in the hole. Endplates were added to eliminate the wingtip vortices effect. A grid consisting of 10x5 points was drawn on the bottom and top surfaces of the airfoil for precise testing of airflow velocity at the given locations. The top endplate has shows the angle of attack of the airfoil, required when testing for the ideal angle of attack.

Fiber optical sensor and cable- The sensor counts the number of times it's light ray gets intersected. In this case, it counts the velocity at which the vane anemometer spins. The anemometer spins according to the intensity of airflow. This relationship was identified by comparing the number of rotations displayed on the counter, and the velocity of airflow. The sensor is connected the counter via a fiber optic cable. Because the dimensions of the sensor are small (10mm x 12mm), it could be used to take measurements at very specific locations.

Counter- Displays the number of times something blocks the fiber optic sensor’s light ray. Because the vane anemometer has three blades, the number displayed on the counter has to be divided by three to determine the actual number of rotations. The fiber optic sensor, cable and counter combine to make an anemometer used to measure the airflow velocity.

Calibration fan- A smaller fan used for calibrating the anemometer before experimenting.

-The calibration fan itself was calibrated using a store bought anemometer. The anemometer was placed near the opening of the tunnel to measure the airflow velocity.

-Before experimentation begins, the fiber optic anemometer is placed at the exact location of the opening of the tunnel. It displays the number of rotations on the counter. Next, it is compared to earlier showings to ensure that the results will stay consistent.

Interchangeable boxes with various holes- Dimensionally identical boxes, but with different holes in them. The holes can be identified using my Hole Properties Coefficient (HPC). To find the "ideal" hole, they were placed in the airfoil and then tested to observe the change in airflow near the surface of the airflow.

String- One of the simplest devices- the string was used for studying the airflow patterns near the airfoil. It followed the direction of airflow, and was useful when observing the change in airflow with a hole present in the airfoil.