HOW TO – Measure the drag coefficient of your car

Energy & Sustainability
HOW TO – Measure the drag coefficient of your car

F2Xx68Jf5Y3Tmff.Medium
iwilltry writes –

The purpose of this experiment is to determine your vehicle’s drag coefficient Cd and coefficient of rolling resistance Crr. This is done by measuring your vehicle’s speed as a function of time while coasting in neutral.

Why would you want to know Cd and Crr for your vehilce? Well, suppose you’re interested in modifying your vehicle for improved fuel efficiency. You might consider modifications such as air dams, wheel skirts, removing mirrors, switching to low rolling resistance tires, etc. Cd and Crr offer a quantitative method of comparing vehicle performance before and after these types of modifications to see if you made any improvement.

HOW TO – Measure the drag coefficient of your car – Link.

Related:
 Blog Ca6439654 A
DIY – improving fuel efficiency – Link.

Discuss this article with the rest of the community on our Discord server!
Tagged

current: @adafruit - previous: MAKE, popular science, hackaday, engadget, fallon, braincraft ... howtoons, 2600...

View more articles by Phillip Torrone

ADVERTISEMENT

Maker Faire Bay Area 2023 - Mare Island, CA

Escape to an island of imagination + innovation as Maker Faire Bay Area returns for its 15th iteration!

Buy Tickets today! SAVE 15% and lock-in your preferred date(s).

FEEDBACK