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Fluid Mechanics

  Differential Manometer (Numericals 2): Q 1:  A piezometer was connected to a pipe to measure the pressure of water. The rise of water level in piezometer was 150 mm. Calculate the pressure of water.    [Ans = 1471.5 N/m 2 ] Q 2:  Pressure in a pipe carrying oil (Specific Gravity 0.92) is 20 kN/m 2 . A piezometer is connected to the pipe. Find the rise of liquid level in the piezometer.  [Ans = 2.21 m] Q 3:  A U-tube manometer is connected to a pipe for measuring the pressure of oil (Specific gravity 0.92) flowing in the pipeline. Mercury (Specific gravity 13.6) is used as manometer liquid and the difference of mercury level in the two limbs is 200 mm. The centre of pipe is 80 mm below the level of mercury in the right limb. Determine the pressure in the pipeline and the head.   [Ans: 23.55 kN/m 2 ] Q 4:  The pressure of water in a domestic supply line was measured using manometer shown in the figure. Derive the equation for head and de...

Fluid mechanics

DifferentialManometer (Numericals 1): 1. A U-tube monometer is used to measure the pressure of oil (specific gravity 0.85) flowing in a pipe line. It's left end connected to pipe and right limb is open to the atmosphere. The centre of pipe is 100 mm below the level of mercury in the   right limb. If the difference of mercury level in the two line is 160 mm, then determine the head and pressure. Solution :          h = 13.6 x 160 x 10 -3 x 0.85 x60 x 10 -3                            = 2176 x 10 -3  x 51.00 x 10 -3                            = (2176-51) x 10 -3                     ...

Fluid Mechanics

Differential Manometer 1.Introduction Differential manometers are used to measure the difference of pressures between two points in a pipe or in two different pipes. There are two types of differential manometers.             1.   U-tube upright differential manometer             2.   U-tube inverted differential manometer 1.2  U-tube Upright Differential Manometer It is used to measure pressure difference at two points in a pipe or between two pipes at different levels. Case 1 - U-tube upright differential manometer connected at two points in a pipe at same level The construction and arrangement of a manometer connected at two different points, A and B, of a pipe is shown in figure 1                              Fig.1U-tube upright differential manometer    Let,          ρ 1  = densit...