aerodynamics
air-oh-die-NAM-iks
/ˌɛəroʊdaɪˈnæmɪks/
The study of the properties of moving air and the interaction between the air and solid bodies moving through it.
In automotive design, it focuses on reducing 'drag' (resistance) and increasing 'downforce' (stability).
The story behind the word. Combining the Greek 'aer' (air) and 'dynamis' (power/force), the term was first used in the mid-19th century to describe the physics of flight. It wasn't until the 1920s and 30s that car designers began to realize that air was a 'fluid' they had to push through.
Word relationships
- streamlining: Streamlining is the practical application of aerodynamics to make an object move faster.
Commonly confused with
- aerostatics: Aerostatics deals with gases at rest; aerodynamics deals with gases in motion.
Word family
- aerodynamic (adjective): Designed to reduce air resistance.
- aerodynamically (adverb): In a way that relates to aerodynamics.
Collocations
- active aerodynamics
- aerodynamic drag
- wind tunnel testing
Example sentences
- "Aerodynamics are for people who can't build engines." A famous (and ironic) quote from a legendary car builder. (Enzo Ferrari)
- "Improving a vehicle's aerodynamics is one of the most cost-effective ways to increase highway fuel economy." Modern fuel efficiency discussion.
Memory hook
Air-Dynamic: How air moves around a dynamic (moving) object. Aerodynamics = Air Power.
When not to use
Don't use it to describe the car's appearance unless that appearance actually serves a functional purpose in airflow.
Fun facts
- The most aerodynamic shape in nature is a teardrop.
- Spoilers on race cars are designed to create 'lift' in reverse, pushing the car down onto the track.
Related words
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