Engineering

Chemical EngineeringQ&A Library5-36C The velocity of a fluid flowing in a pipe is to bemeasured by two different Pitot-type mercury manometersshown in Fig. P5-36C. Would you expect both manometersto predict the same velocity for flowing water? If not, whichwould be more accurate? Explain. What would your responsebe if air were flowing in the pipe instead of water?he dutdlectyFlowFlow2FIGURE P5-36CQuestion

Asked Jun 24, 2019

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Step 1

Here in this setup we find the difference in stagnation pressure and static pressure heads of the fluid to find the velocity of flow.

Step 2

At stagnation point kinetic energy of the fluid converts in pressure energy, the difference between the two pressure heads is equal to the lost kinetic head at stagnation point.

Step 3

Comparing both setups 1 and 2 we can say setup2 gives more accurate results because in setup2 both static pressure and stagnation pressures are measured at the same level(centre line of the flow) whereas in setup1 stagnation pressure...

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