6. Hydrodynamics

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6. Hydrodynamics

• Kamil Sarka

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Motion of liquids
Ideal liquid nondeformable, ideally fluid
FLOW
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Continuity Equation
velocity
Cross section
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Bernoulli Equation
Derived from the law of conservation of energy
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Horizontal tube
Ideal case
Real case
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Torricelli Equation
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Viscosity
real liquid nondeformable, NOT ideally fluid
(internal friction)
Viscosity is a measure of the resistance of a
liquid to flow
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Flow of real liquids
Reynolds criterium
Re lt 2000 laminar flow Re gt 2000 turbulent flow
Reynolds number
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http//www.youtube.com/watch?vp08_KlTKP50 http//
www.youtube.com/watch?vblJwTcD1WoU
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Poisseuilles Equation
In the case of laminar flow only
(Measurement of viscosity)
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The body in a liquid
Resistance of the liquid
http//www.youtube.com/watch?vj6yB90vno1Efeature
related http//www.youtube.com/watch?v7jTeiz_f1i
Yfeaturerelated
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Sedimentation
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Thank you.