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Electric Prototype Design: It’s All About Aerodynamics!

October 25, 2016

The first rule about aerodynamics is it’s a sub-field of fluid dynamics.

And we talk about it; a lot.

In the prototype class aerodynamics are the rule. The entire body of the car is made with the aim to decrease air resistance. We want the air to go right over our driver’s head, down the tail of the car and behind it (where our opponents will be)

The outline of the car body is based on a classic ‘tear-drop’ shape; the most aerodynamic shape for anything slower than the speed of sound. We use that shape to tell the air where to go.

teardrop-2

Telling the air where to go

The air should flow easily around the car. The upper streams should meet the lower streams at the tail to smoothly glide away.

Here’s the first draft of our Team’s car:

bodyfirstdraft-1

The shape is similar to a passenger airplane, or the perimeter shape of an airplane wing; and a bit like a shark without fins (sharks can keep their fins)

coolshark

So Streamy!

That’s the short and fun explanation of why that body shape is chosen. Next post we’ll be sharing more about the Electric Prototype class and its design constraints. Check back soon and often!

Welcome to the Shell Eco-Marathon Team Blog!

October 20, 2016

What is the Shell-Eco-marathon?

It’s an annual design competition that pits contestants from schools around the world to fabricate the most energy efficient vehicles possible. Our team will represent your college in the North America’s Division, which takes place in Detroit in 2018

Who are we?

Our team is a group of Mechanical Engineering Technology students who love machines! So we’ve started a blog to share our experience of designing an electric car with you.

We’ll be posting regular updates on our progress, challenges and all of the new things we learn while working on this project.

Check back soon and often to see what we’ve been up to!