Fluid dynamics. Introduction

Nikolai KornevUniversity of Rostock

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Vorlesungsplan

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Classification of flows

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• Two and three dimensional flows• Steady and unsteady flows • Streamlines• Fluid particle trajectory• Viscous and inviscid flows

Viscosity of water and flow

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Viscosity of air Viscosity of water

Viscous flows. Main equations.

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Continuity equation

Navier Stokes equation

Navier Stokes equation

Navier Stokes equation

Analysis of acceleration

Inviscid flows. Euler equation.

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Continuity equation

Euler equation

Euler equation

Euler equation

Potential flows. Euler equation.

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Continuity equation

Inviscid flowsIrrotational flows

Laplace equation

Boundary conditions for Laplace equation:• No penetration condition• Decay at infinity

Bernoulli equation.

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Derivation of Bernoulli equation.

Physical meaning of each terms.

Extension to viscous flows.

Pressure coefficient Cp.

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Cp distribution on cylinder.

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Pitot tube.3621728.jpgMG-8493-1.jpg

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Pitot tube.

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Thank you very much for your attention!

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