III. 1) Determine the pressure at point 1 (5 pts) 2) Determine the velocity at point 1 (15 pts) A flow measurement instrument is shown in the figure. Water h3 = 12 cm h₂ = 7 cm h₁=3 cm 2 Stagnation point →Vi
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- Question 2. The manometer in the figure is used to measure the pressure difference between two points in the pipe. The density of the water in the pipe is 1000 kg/m3 and the valve is open. If the readings on the manometer are z1= 100 mm, z2= 250 mm and h= 90 mm, how many N/m2 is the difference between P1 and P2? watplf Valve aikProblem #4 If the pressure difference between points 1 and 2 is 25 psi, what will be the flow rate? The pipes are galvanized iron with 0.0005 ft. Take v = 1.06 × 10−5 ft²/s and neglect Kis = minor losses. 10 in. dia 1. 2000 ft, 8 in. dia A B 1600 ft, 6 in. dia с 2. 800 ft, 10 in. dia-Question 1 b) The U-tube manometer can be used to detemine pressure difference between two systems. This type of manometer is called a differential U-tube manometer. Consider the differential manometer connected to a pipe, as shown in Figure 1. Explain step by step on how you can calculate the pressure difference between point A and B. P1 h, A Flow Test Section U-Tube Differential Manometer
- (b) An incompressible viscous liquid flows down a plate inclined at angle 8 as shown in Figure 4. The flow is assumed to be steady and the film thickness is constant. The density of the liquid is p, its dynamic viscosity is μ and the film thickness is h. Y₁ 0 0 8 ↓ 11 Figure 4 (i) Show that the governing equation for the velocity u(y) can be written as: ² pgsine = Əy² fl (ii) What are the boundary conditions at y = 0 and at y = h ? (iii) The velocity u(y) can be written as expression for C. (iv) What is the average velocity of the liquid film for unit depth (into paper)? u(y) = Cy(2h - y). Determine theAn engineer sees a water flow through a 0.4 km long and 200 mm diameter pipe having a roughness of 0.0015 mm at 0.075 cubic meter per second. Assuming that the property of H2O is u = 0.001 Nm/sec and p = 1 g/cu.m. He is bored, so he wanted to calculate the following, help him. a. the pressure drop cause of friction b. velocity of H2O in the pipe c. find the Re?A vertical pipe is shown in figure 1 below. The pipe tapers from 50 mm in diameter to 25 mm in diameter. If 2 liters of water per minute flow upwards through the pipe the pressure difference across the pipe is 35 kpa. Calculate the flow downwards through the pipe if the pressure across the pipe is to be zero. The losses across the pipe are given by h1=k((v2) ²-(v1)²)/2g,where v1 and v2 are the velocities in the 50 mm and 25 mm sections respectively.
- b) The U-tube manometer can be used to determine pressure difference between two systems.This type of manometer is called a differential U-tube manometer. Consider the differentialmanometer connected to a pipe, as shown in Figure 1. Explain step by step on how you cancalculate the pressure difference between point A and B.The pressure difference between two points as measured with a manometer is given as ?2 − ?1 = ??ℎ The following figure shows a single U-tube manometer for measuring pressure difference between points “A” and “B”. By determining the pressure at point “a” through the left leg and then through the right leg, show that the difference in pressure between point “A” ?? and “B” ?? is approximately given by ?? − ?? ≅ ?(ℎ2 − ℎ1)(??2?)A differential "U"-tube manometer containing mercury of density 13000 kg/m³ is used to measure the pressure drop along a horizontal pipe. If the fluid in the pipe is water and the manometer reading is 0.65m, what is the pressure difference between the two tapping points? Fluid density Pw A B a b datum Manometric fluid density p Hg Figure of manometer setup
- 1.- In the following figure the liquid of A and B is water and the liquid of the manometer is oil with a relative density of 0.800 h₁= 25 cms; h₂= 15 cm; ha= 50cms Determine PA-PB in centimeters of water el h2 h3 .800; A B.A differential manometer is attached to a pipe as shown. Calculate the pressure difference between points A and B. is n. 100 hm re A Mercury B Oil, s = 0.90A flow rate measuring device is installed in a horizontal pipe through which water is flowing. A U-tube manometer is connected to the pipe through pressure taps located 3 in. on either side of the device. The gage fluid in the manometer has a specific weight of 112 lb/ft3. Determine the differential reading of the manometer corresponding to a pressure drop between the taps of 0.5 lb/in². h = ft