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Fluid Mechanics, Continuity equation, The fluid is non-viscous
Internal…
Fluid Mechanics
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Buoyancy
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Surface tension
The surface of a liquid behaves like a membrane under tension.Arises because the molecules of the liquid exert attractive forces on each other 
Fluid dynamics
Fluid Flow
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Turbulent flowNo steady-state pattern; the flow pattern changes continuously
Laminar flowAdjacent layers of fluid slide smoothly past each other and the flow is steady
Bernoulli's equation
▲P=½ρv1²(A1²/A2² -1), where ▲P=P1-P2 (Pressure difference)
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Continuity equation
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Consider the steady (laminar flow) of an ideal fluid with density, ρ along a tube which changing cross-sectional area A1 to A2 By using the principle of conservation, the continuity equation for incompressible fluid is given by
A1v1=A2v2,
where A1 and A2 are the cross-sectional areas
and v1 and v2 are the velocity of the fluid respectivelyFor compressible fluid,
ρ1A1v1=ρ2A2v2
Volume flow rate is the rate at which volume crosses a section of the tube
A1v1=A2v2=constant
▲V/▲t=Av
where ▲V/▲t= volume flow rate
A=Cross-sectional area of the tube
v=speed of the fluid
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The flow is steady(laminar)The velocity of the fluid at each point remains constant
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The flow is irrotationalThe fluid has no angular velocity about any point (NO TURBULENT occurs)
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