image credit: Alesia Kazantceva / Unsplash
Objective: Design a Raincoat
pockets / interior + exterior
zipper / buttons
hood / adjustable
longer length / parka
breathable / ventilation
Differences in position and shape of burrow openings of black‑tailed prairie dogs create passive ventilation from wind energy by altering air pressure.
Functions: "As air flows across a surface, a gradient in flow speed forms, where air moves slower the closer it is to the surface. The prairie dog is able to take advantage of this gradient by building a mound with an elevated opening upwind and a mound with a lower opening downwind. Over the elevated opening, wind velocity is faster than it is over the lower opening, creating a local region of low pressure (following Bernoulli’s principle). The result of this difference in pressure between the two openings is one-way air flow through the burrow as air gets sucked into the lower opening and flows out the elevated one. This is the mechanism behind a Venturi tube."
Velocity decreases with height
Opening style create great pressure differences
Developing and creating a pattern that allows the inner liner to be breathable / by increasing and decreasing the areas where there is more movement.
This idea aligns with 2 of life's principles: resilient + locally attuned and responsive