uid mechanics
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- Water flows upwards through a venturi section. The venturi section varies indiameter from 15cm at the top and bottom to 5cm at the narrowest point. A differential pressuretransducer measured a pressure difference of 43kPa. Assuming steady flow, determine the velocity ofthe flow through the narrowest region and the discharge through the meter. Assume that water has adensity of 1g/cm 3 .b) The discharge through the venturi sectionRefer to Fig. P5.4. Water at 10°C flows up AB (5 m long, 40 mm diameter),then along BC (3 m long, 30 mm diameter). The measured pressure at A is 275kPa. (a) Find the pressure at C if the flow rate is 2.0 L/s. Neglect pipe frictionand energy losses. 6) Repeat for the same flow rate in the opposite direction.Table A.1 for water at 10°C: y = 9.804 kN/m².VerticalWater flows upwards through a venturi section. The venturi section varies indiameter from 15cm at the top and bottom to 5cm at the narrowest point. A differential pressuretransducer measured a pressure difference of 43kPa. Assuming steady flow, determine the velocity ofthe flow through the narrowest region and the discharge through the meter. Assume that water has adensity of 1g/cm 3 .c) Is the fluid pressure at the bottom of the venturi section greater than, less than, or equal to the fluidpressure at the narrowest region?
- Orifice meter with orifice cross-section 0.00785 m2 is inserted in a pipe of cross-section 0.0314 m2. The pressure gauges fitted upstream and downstream of orifice give reading of 19.62 N/cm2 and 9.81 N/cm2 respectively. Determine the value of discharge using Cd=0.6.A pipe AB carries water and tapers uniformly from a diameter of 0.1 m at A to 0.2 m at B over a length of 2 m. Pressure gauges are installed at A, B and also at C, the midpoint of AB. If the pipe centerline slopes upwards from A to B at an angle of 30° and the pressures recorded at A and B are 2.0 and 2.3 bar, respectively. (1 bar = 100 kPa) Determine the flow, in m^3/s through the pipe at C neglecting all losses. (1 bar = 100 kPa). (Please round-off final answer to four decimal places) Determine the pressure in bars, recorded at C neglecting all losses. (Please round-off final answer to 2 decimal places)A 50 mm water line possesses two pressure connections 15 m apart (along the pipe)having a difference of elevation of 3 m. When water flows upward through the line at a velocityof 3 m/s, a differential manometer attached to the pressure connections and containing mercuryand water shows a reading of 254 mm. Calculate the friction factor of the pipe
- In a pipe 300 mm in diameter, water flows over a length of 300 m, connecting point A, at topographic elevation of 100.0 m, in which the internal pressure is 291 kPa, to point B, at topographic elevation 74 .0 m, where the internal pressure is 334 kPa. Determine the direction of flow. Data: Specific gravity of water = 10 kN/m3. A) from B to A B) There is no drain. 0 C). from A to B For the previous question, calculate the pressure drop between A and B, in meters. ( ) If the flow is equal to 0.18 m3/s, calculate the friction factor of the pipe. ( ) For this same flow rate, calculate the friction velocity. ( )the system consists of 1000m of 50mm cast iron pipe, two 45° and 4 90° flanged long radius elbows, a fully open flanged globe valve, and a sharp exit into a reservoir. Water flows at rate of 4.5 L/s from pt. 1 to the reservoir whose free surface lies 100m above pt.1. Kinematic viscosity is 1.02x10^-6 sqm/s and f=0.035. compute for: a.) reynolds number b.) total head lossv(m) c.) gage pressure at 1 to deliver water into the reservoir (kPa)5.10 The water is supplied at the rate of 3 m3 per minute from a height of 4 m to a hydraulic ram, which raises 0.3 m3/minute to a height of 30 m from the ram. The length and diameter of the delivery pipe is 100 m and 70 mm respectively. Determine the D' Aubuisson's efficiency of the hydraulic ram if the co-efficiency of friction f = .009.
- Water flows from a large reservoir at the rate of 0.0137 m3/s through the system shown in the Fig. below. Calculate the pressure at B. NB: Use f = 0.017 (friction factor) and fT = 0.010 in zone of complete turbulence. Hint: Include minor losses, assume K = 1.0 for the inlet or entrance and use the applicable appendix at the back of the textbook to obtain the pipe parameters.Determine the pressure (in kN/m2) in the pipe shown (Pressure A) if y=1.24 m, h=1.02 m, and the manometry fluid is mercury (Specific Gravity=13.6).Water flows from A to E through the pipe system shown. It is known that the flow in pipe BFGC IS 30 LITERS /SEC. and that the pressure head at A is 60 m. Assuming that f =0.022 and that all the pipes are level, determine the total flow from A to E and the pressure heads at B, C, D and E.