Contours of mach number on nose head of pitotstatic geometry at 15 36 degree angle 33. The tank must be free to add more water during the experiment. If a stream of uniform velocity flows into a blunt body, the stream lines take a pattern similar to this. Doc experiment 1 fluid flow measurements lab report. This experiment will demonstrate how air flow speed is measured using a pitot static tube. The purposes of this laboratory are to 1 help students become familiar with wind tunnel operation, and 2 measure air flow velocity in the tunnels working section by three devices. Such flows are typically encountered in a wind tunnel test section free.
Using the pitot static tube and pressure tap with wind. The purpose of this experiment is to study and calibrate a pitot static tube. Bernoulli eq 09 flow measurement pitot tube youtube. An application of bernoullis equation to a pitot static tube and its use on an airplane. This experiment will demonstrate how air flow speed is measured using a pitotstatic tube. Both manual as well as electronic pressure sensing is available on this. This design of pitot static tube was completed in my 6 months industrial training.
Subject fluid mechanics topic module 4 pitot tube lecture 30 faculty venugopal sharma gate academy plus is an effort to initiate free online digital resources for the first time in. A pitotstatic tube is a device which allows measurement of both the static and stagnation pressures. Subject fluid mechanics topic module 4 pitot tube lecture 30 faculty venugopal sharma gate academy plus is an effort to initiate free. A pitot tube, also known as pitot probe, is a flow measurement device used to measure fluid. Pitot tube is widely used for fluid velocity and flow rate measurement in industrial fields. Streamlines around a blunt body note how some move to the left and some. The pitot tube is used to measure the difference between stagnation pressure and static pressure at a point in the fluid. Contours of static pressure of pitotstatic tube surface and free stream. The pitot static tube is mainly used for making temporary measurements of flow, although it is also used in some instances for permanent flow monitoring. Fluid velocity measurement using a pitot tube pitot.
The aim of the experiment is to determine velocity of fluid at various. They are commonly used to measure air velocity, but can be use to measure the velocity of other fluids as well. Coefficient of discharge triangular notch experiment. To measure the flow velocity by use of a pitot static tube and hence find the discharge coefficient background. Flow measurement pitot static tube basics duration. Fluid mechanics module 4 pitot tube lecture 30 youtube. In the previous programme we saw that the relationship between the pressure p, the velocity u and the elevation z of a flowing fluid is given by bernoullis equation. Pdf design of pitot static tube for measuring the velocity of rail.
All experiments in the fluid mechanics laboratory require a formal report. Pdf acoustic reflectometry for pitottube blockage detection. This difference, called the dynamic pressure, can be used. However, improper installation of the pitot tube is actually inevitable, which causes additional errors. Pitot static tube apparatus velocity measurement device. The static pressure probe consists of a hypodermic needle type pitot. In pitot static tubes, there is a large port in the direction of the flow that measures the total pressure, termed the pitot head, and multiple smaller static pressure ports perpendicular to the flow. The pitotstatic tube is a traditional device for local pointwise measurement of airspeed.
Pitot tubes also called pitot static tubes are used to measure fluid velocity at a point in a fluid. This project was appreciated by scientists of drdo. I have successfully designed the pitot static tube for rail track rocket sled. Made by faculty at the university of colorado boulder, department of. Proof of bernoullis theorem and determination of the exact section in the venturis tube are presented in experiment no. This manual deals with experiments of fluid mechanics science, which studying in the. Pitot static tube apparatus velocity measurement device mech learn to earn. A pitotstatic tube is widely used for measuring unknown speeds in air flow, for example, it is used to measure airplane airspeed. Since the static pressure, under this situation, is equal to the hydrostatic pressure due to its depth below the free surface, the difference in level. Pdf the response of pitotstatic tubes in the very low reynolds number range re less than 1. Pdf pitotstatic tube response at very low reynolds numbers. Instead of separate pitot and static ports, a pitotstatic tube also called a prandtl tube may be employed.
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