A pump is tested for cavitation using the test rig. Water at 20°C is pumped and the inlet pipe diameter is 100 mm. The valve in the inlet line is gradually closed until the pump starts to cavitate. At this point the flow rate is 24 L/s and the vacuum reads 62 kPa of vacuum. Evaluate for the given flow rate, b. i. the NPSHA (Net Positive Suction Head Available) ii. the NPSHR (Net Positive Suction Head Required) to be specified if a 5% safety margin is allowed.

Q: What Is a Fluid?

A: A fluid is defined as “the substance that constantly changes under an applied shear stress apart…

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Q: Which of the following assumption is made in Bernoulli’s equation? a. The flow is incompressible b.…

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Q: Question 3 As a means of measuring the viscosity, a liquid is forced to flow through two very large…

A: Given: To explain:

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A: The temperature field within a fluid is T=3xz2+x-1zt At t=6s the location is (x,z)=(1,2).

Q: lq * (0.000001 84)] v = TT * q- Flow rate (STB per Day) v- Fluid velocity within pipe d- Pipe…

A: The nature of flow whether it is laminar or turbulent is determined by the Reynolds number which can…

Q: If the viscosity of water at 70°C is 0.42 centipoise and its relative density is 0.978, determine…

A: Given data: μ=0.42 centipoiseRD=0.978 Need to determine the absolute viscosity is Pa-s and its…

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A: The first part of the question is asking to convert horsepower (hp) to kilowatts (kW). We know that…

Q: The celebrated Lazydog has recently added a 81 m³ workshop on to his 3 house. What diameter must a 7…

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Q: What is the relation between temperature and viscosity for hydraulic oil?

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Q: The energy loss due to the change of flowrate of a fluid flow in direction is known as minor loss.…

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Properties of Fluids

The term fluid represents a type of substance that can easily change its shape under any external pressure/force and can flow. Fluids can acquire any shape in which it is stored and can resist normal stresses but cannot resist shear stress in rest condition. Whenever external shear stress is applied to fluids, it starts to flow. The fluids may be liquid or gas. Example- water, air, etc.