CALCULATING VELOCITY USING A PITOT TUBE HOW TO

Next, determine the density of the fluid. Take velocity pressure readings Take readings in the center of each quadrant Best to have one person taking readings while someone else records observed velocity pressures Hold Pitot tube perpendicular to air flow Tip of tube should point directly into direction of airflow Slightly rotate the Pitot tube to obtain highest.

The static pressure reads 25 N/m^2 for this example. Next, determine the static pressure measured by the pitot tube. In this example, the total pressure is measured as 50 N/m^2. The following example outlines the steps and information required to calculate the velocity of fluid from a pitot tube.įirst, determine the total pressure reading of the tube. When the air is filled inside the tube, the pressure at. V is equal to sqrt (2(static pressure minus stagnation pressure)/density). Using this pressure difference and applying Bernoullis equation, the speed of air can be calculated.

CALCULATING VELOCITY USING A PITOT TUBE HOW TO

How to calculate velocity from a pitot tube? The formula to calculate velocity using Bernoullis equals is provided below. Although, in current times, GPS can also be used to confirm aircraft speed. These tubes are most often used on aircraft to help determine the speed of the aircraft. This pressure can then be used to calculate the speed or velocity of the fluid or object moving through the fluid. Pitot Tube DefinitionĪ pitot tube is a right-angled tube that points into the flow of fluid to measure the pressure. To calculate velocity from a pitot tube, multiply the difference between the total pressure and static pressure by 2, divide by the density of the air, then finally, take the square root of this result.

Calculating velocity using a pitot tube