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8/19/2019 Slides 06 (Fluidos)
1/2
!"#$%' )" *+,&)-.
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! / &01)%&.&0 &( 23%&(
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8/19/2019 Slides 06 (Fluidos)
2/2
J0% &0 K0'1(3::%
L(9%701*( &37 9(:370 &0 23%&(
&. 8()%C5( a1a2 8.'. b1b2
a1
a2b1
b2
J0% &0 K0'1(3::%
L(9%701*( &37 9(:370 &0 23%&(
&. 8()%C5( a1a2 8.'. b1b2
a1
a2b1
b2
=> " E C > 0
J0% &0 K0'1(3::%
W = P 1 A1 (b1 – a1) – P 2 A2 (b2 – a2)
a1
a2b1
b2
J0% &0 K0'1(3::%
a1
a2b1
b2
"V = A1(b1 – a1) = A2(b2 – a2)
W = P 1 A1 (b1 – a1) – P 2 A2 (b2 – a2)
W = P 1 "V – P 2 "V = " E C
P 1 "V – P 2 "V =! ! "V v22 – ! ! "V v1
2
J0% &0 K0'1(3::%
a1
a2b1
b2
P 1 "V – P 2 "V = ! ! "V v22 – ! ! "V v1
2
! ! v12 + P 1 = ! ! v2
2 + P 2
Densidades de Energia – J/m3
J0% &0 K0'1(3::%
h1 h2
! ! v12 + P 1 = ! ! v2
2 + P 2
mgh / "V = ! "V g h / "V
! ! v12 + ! g h1 + P 1 = ! ! v2
2 + ! g h2 + P 2
!"# %" &"'()*++#