Experiment to Investigate the Validation of Bernoulli’s Equation

TITLE Bernoullis Principle OBJECTIVE try outisdonetoinvestigatethe ecesisofthe Bernoullisequation and also to measure pressure distribution along venture tube. INTRODUCTION This try is carried out to investigate the validity ofBernoullis theorem when applied to the steady guide of pee in fall duct and to measure the flow rates and both static and total pressure heads in a rigid convergent/divergent tube of known geometry for a range ofsteady flow rates.The Bernoullis theorem (Bernoullis theorem, 2011) relates the pressure, velocity, and elevation in a moving fluent (liquid or gas), the compressibility and viscosity of which be negligible and the flow of which is steady, or laminar. In order to demonstrate the Bernoullis theorem Bernoullis Apparatus streak Equipment issued in this experiment. THEORY Velocity of fluid is less fluid The fluid is incompressible and non- viscous in that respect is no warmness energy transferred across the boundaries of the pipe to the fluid a s either a heat gain or loss. on that point are no pumps in the section of pipe For an ideal fluid flow the energy density is the same at all locations along the pipe. This is the same as utter that the energy of a unit mass of the fluid does non change as it flow with the pipe system. APPARATUS EXPERIMENTAL PROCEDURE 1, A inspection was done to ensure that the unit was in proper operating condition, so that the experiment impart not consist of errors. 2, A hose had to be connected to the nearest power supply. 3, The discharged pipe was then opened. , The cap nut of the probe contraction gland was set to much(prenominal) condition, that the slight oppositeness could be felt on moving the probe, and the piddle flow created a sound which also helps to determine the flow pressure (by hearing it ). 5, The inlet and button valve was then opened. 6, Then the pump was switched on and the main cock was released slowly opened. 7, The vent valve on water pressure gauze was opened a nd outlet cock was closed with great care until pressure gauze was flushed. , By simultaneously setting the inlet and outlet cock, the water train pressure gauze was regulated, so that neither upper or the lower range limit was overshot or undershot. 9, Pressure at all point were measured and recorded. The overall pressure probe was moved to corresponding measurement level and the overall pressure was noted down. 10, The volumetric pressure flow was determined, by using stopwatch to establish measure required to raise the water level in the volumetric tank from 3to 7 liters. RESULTS electric current RATES (L/s) emanate VELOCITY AT DIFFERENT MEASUREMENT POINTS (10-3 m/s) 1 2 3 4 5 6 0. 137 2. 16 3. 45 8. 0 5. 91 2. 98 2. 16 0. 122 I. 93 3. 07 7. 92 5. 26 2. 65 1. 93 0. 094 1. 48 2. 37 6. 10 4. 05 2. 04 1. 48 0. 114 1. 80 2. 87 7. 40 4. 91 2. 48 1. 80 0. 116 1. 83 2. 92 7. 53 5. 00 2. 52 1. 83 VOLUME(L) TIME(s) FLOW RATES(L/s) 3 21. 90 0. 137 4 32. 78 0. 122 5 53. 19 0. 094 6 52 . 85 0. 114 7 101. 50 0. 116 POINT (I) Di(mm) A(10-4 m2) 1 284 633 2 225 397 3 140 154 4 172 232 5 242 460 6 284 633 GRAPH intelligence it is known that water is a fluid and all fluids have the properties to take shape of the container or wheresoever they are stored or flow through.Since the fluid cosses through a given path for duration of time there have to be a pressure lose due to the path design or distance or width. Bernoullis principle states that if the rate of flow of the fluid is high the pressure will be low and if the slower rate of flow the fluid exerts more quickly (with pressure). CONCLUSION From the experiment it is found that the difference between the experimental and the calculated value are to high, this could happen due to such factors 1, the reading was not taken accurately or either not taken to the very denary point or perhaps parallel eye reading. , Bubbles those were trapped on the top of the tube and could not have been released or seen. 3, The recording the data time might not be accurate. 4, The internal resistance of the water , those were not taken into account during the calculation. 5, The pressure at each manometer tube might not be stable before reading was taken due to in accurate air flow or pressure flow. All the factors mentioned above could play a great role in effecting the results. There are many ways to improve reading one way can be repeat the experiment triplex times and get the average.Considering all factors and the comparison between data collected via multiple values the experiment is successful, and it proves Bernoullis principle of fluid motion pressure. REFERENCES 1, http//camillasenior. homestead. com/Activities_Showing_Bernoulli_s_Principle. pdf 2, http//hyperphysics. phy-astr. gsu. edu/hbase/pber. html 3, http//www. princeton. edu/asmits/Bicycle_web/Bernoulli. html 4, http//mitchellscience. com/bernoulli_principle_animation 5, http//www. scribd. com/doc/68038037/Experiment-Bernoulli