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- Thread starter Mohankpvk
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- #2

Chestermiller

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I don't see the analogy, since, in the open system case, the inlet and outlet pressures are not necessarily the same.

- #3

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Ok.I just have another doubt. As per work energy principle, the energy spent in moving an object is stored as kinetic energy.Flow work is done to make the fluid move.In Bernouli's equation, why is it not included in kinetic energy (i.e) why kinetic energy and flow work are considered seperately?I don't see the analogy, since, in the open system case, the inlet and outlet pressures are not necessarily the same.

- #4

Chestermiller

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I don't understand what your asking. Can you write down an equation and identify the specific terms you are referring to?Ok.I just have another doubt. As per work energy principle, the energy spent in moving an object is stored as kinetic energy.Flow work is done to make the fluid move.In Bernouli's equation, why is it not included in kinetic energy (i.e) why kinetic energy and flow work are considered seperately?

- #5

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I took the equation in the photograph from "The fundamentals of thermodynamics" by Moran et. al. I have marked the flow work and the kinetic energy terms.My doubt is that if work done in moving the fluid will be stored as kinetic energy of the fluid then why K.E. and flow work are considered as two different terms?I don't understand what your asking. Can you write down an equation and identify the specific terms you are referring to?

- #6

Chestermiller

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