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July 28, 2005, 12:38 |
enrgy equation
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#1 |
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I have a doubt regarding the pressure work in the energy equation. The rate of work done on fluid per unit volume = del.(Pv)
Expanding this term => P*(del.v) + v.del(P) First term ( P*(del.v) ) = Reversible work due to compression/expansion. So what does the second term (v.del(P)) represent physically. thanks. |
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July 28, 2005, 15:10 |
Re: enrgy equation
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#2 |
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That represents flow work, eg. in turbines
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