3. Air flows steadily through a pipe of circular cross-section shown below. At point 2, a tube connected to thepipe extends downward into a tub of water at rest. Air leaves the pipe at point 3 to the atmosphere. For thepipe, the cross-sectional areas A₁ = A3 > A2. Derive an expression for the height h to which water will risein the vertical tube, as a function of the specific gravity of air (SG Pair Pwater), velocity at point 1 (V₁),pipe diameters at point 1 (D₁) and point 2 (D2), and any relevant constants. You may assume that air isincompressible and inviscid (thus, flow variables are all uniform at any cross-section).=Air in123Air out

Answered: 3. Air flows steadily through a pipe of…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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A vertical venturimeter carries liquid of relative density 0.8 and has inle. and throat diameters of 150 mm and 75 mm respectively. The pressure connection at the throat is 150 mm above that at the inlet. If the actual rate of flow is 40 litres/sec and the C 0.96, calculate the pressure difference between inlet and throat N/m?.
Q 2/ Calculate the difference between PRESSURE OF COMPRESSED AIR at point A and PRESSURE OF CONFINED WATER at point B located in pipes shown in Figure bellow. (PA- PB). Water B 3 m Water Air 1.5 m Air 1.2 m
In the system in the attached image, a pressure change of 35 kPa in pressure of air occurs. Here the brine-mercury interface in the right vertical tube drops by 6 mm in the brine level, while the pressue in the brine pipe remains constant. What is the ratio of A2/A1?
A pressurized tank of water is used to create a fountain, as illustrated. Assume that the water's free surface area in the tank is very large relative to the pipe's cross-sectional area, which is circu- lar with diameter d 1.0 cm. The small pipe bend has height = 10.0 cm. At the instant when 0.75 m, H = 2.5 m, and the gauge measures a pressure of Pgauge 20.0 kPa, the water spray reaches a height L above the pipe exit. h = = = Neglecting viscous effects, determine the height of the spray, L.
As shown in figure, water flows through pipe A and B. The pressure difference of these two points is to be measured by multiple tube manometers. Oil with specific gravity 0.82 in the upper portion of inverted U tube and mercury in the bottom of both ends. Determine the pressure diffference.
Which is the most accurate statement of Bernoulli's Principle? Select one: O a. Fast -moving air causes lower pressure O b. Lower pressure causes fast-moving air O c. Both A and B O d. None of these The body is stable if the center of gravity of the body is below the metacenter. Answer: The amount of energy per pound or Newton of fluid is called the head. Answer: For incompressible fluids, the flow rate is constant (write in small letters).
A mercury manometer is used to measure the pressure difference between pipes A and B. Oil (specific weight = 8.33 kN/m³) is flowing in pipe A and mineral oil (specific weight = 8.96 kN/m³) is flowing in pipe B. An air pocket is entrapped in the mineral oil as shown. Determine the pressure in pipe B if the pressure in pipe A is 105.5 kPa.
Problem 1: Determine the pressure at A if the gauge pressure at B is 87 kPa. The specific weights (weight per unit volume) of each fluid are Ywater = 9790 N/m³, Ymercury = 133100 N/m³, Yoil = 8720 N/m³. Water flow A 4 cm SAE 30 oil Mercury I 5 cm B- 6 cm 11 cm
Fluid mechanic is our subject
3.26 Water flows downward along a pipe that is inclined at 30° below the horizontal, as shown. Pressure difference PA - Pg is due partly to gravity and partly to friction. Derive an algebraic expression for the pressure difference. Evaluate the pressure difference if L= 1.5 m and h =150 mm. Water 30 1. t. Mercury
A water filled pipe has water flowing at v1= 5.90 m/s in a section of pipe where the diameter is d1= 20.2 cm and the pressure is known to be P1= 7.00×104 N/m2 above atmospheric pressure. a. If the pipe carries the water 3.5 meters up hill without any change in diameter, what is the new absolute pressure within the pipe? b. After flowing up the hill described above, the pipe narrows to 80% of its original radius, what will be the new water velocity (v2) in the pipe? c. What will be the absolute pressure (P3) in the smaller pipe? d. What is the volume flow rate through the smaller pipe?
Find the force of oil on the top surface CD of the figure below if the liquid level in the open pipe is reduced by 4.0 ft.

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