For an explanation, see the main splats page
The principles of fluid flow
- There are two sorts of fluid that we meet in daily life: gases and liquids. Each has the property that the particles are not closely bonded, so they can flow.
- An object moving through a fluid experiences drag. Engineers design the shapes of aircraft, ships and vehicles to reduce drag and improve efficiency.
- Laminar flow is more efficient than turbulent flow because turbulence absorbs energy, and so slows the fluid or the object passing through the fluid.
- The pressure exerted by a moving fluid is described by Bernoulli's principle, which is rooted in the assumption that a fluid is made of separate particles.
- Animals which rely on swimming or flying fast to catch food or to avoid being food, have evolved streamlined bodies that produce a laminar flow and reduce drag.
- The relative speed of a fluid may be measured with a Pitot tube, which uses the pressure detected to deduce the velocity of the fluid (or the tube).
This file is http://members.ozemail.com.au/~macinnis/scifun/, first created on February 20, 2009. Last recorded revision (well I get lazy and forget sometimes!) was on February 20, 2009.
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