
Summary
This tutorial is about flow of fluids.
It's an initially strange notion that
pressure and energy density are the same thing. However we will
see how this concept leads us to the Bernoulli Effect, which explains
why balls in games can take curved paths. We consider the
pitotstatic tube used for measuring speed in aeroplanes. We will also look at the
coefficient of drag, which affects the paths of projectiles, among other
things. We will, as an extension, have a look at the skin
friction. We will look at some simple models using sporting
examples. Finally we compare turbulent and laminar flow, using the
Reynolds Number to predict these.
Key Words:
aerofoil, pressure, streamlines, continuity
equation, energy density, kinetic energy, potential energy, pitotstatic
tube, Bernoulli Equation, drag, drag, coefficient, skin friction,
laminar flow, turbulent flow, Reynolds Number.

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