• Confined underground spaces run out of air
• Cycling air requires energy

• Mimic the burrows made by prairie dogs
• Harness natural difference in air velocity to create airflow

Problem

Solution

https://asknature.org/strategy/asymmetric-burrow-openings-create-passive-ventilation/

https://www.brainkart.com/article/Railway-Tunnelling--Ventilation-of-Tunnels_4384/

Prairie Dog

Burrows

Through evolution, Prairie dogs have adopted a tunnel burrowing design that allows them to have fresh oxygenated air without being exposed to wind and fear of suffocation. By utilizing Bernoulli's Principle, the prairie dogs were able to have fresh air be ventilated passively throughout their

<- keep this as a note or whatevs

• Burrows serve as protection from predators and flash floods

• Difference in air pressure depending on altitude causes air to circulate

Evolutionary Precedent

Conceptual Precedent

https://www.google.com/url?sa=i&url=https%3A%2F%2Fwww.quora.com%2FHow-do-they-design-the-ventilation-system-in-the-Delhi-Metro-in-an-underground-station&psig=AOvVaw154XE3DLPW-9iNcC451lb6&ust=1705153591736000&source=images&cd=vfe&opi=89978449&ved=0CBQQ3YkBahcKEwjglP2l_teDAxUAAAAAHQAAAAAQKA

Train creates low air pressure

Air intake

Technical Precedent

Cut concept:

Improving aerodynamics in cars

• Fuel efficiency, mitigate environmental damage

First sketches of the project. Writing down the general idea.

First Sketches:

General ideas

Revised Sketches:

Prototyping natural strategies

Revised Sketches:

Prototyping natural strategies

Speedrun Prototype

Low pressure

High pressure

Rapid

• Find an air visualization method (to track the air while being circulated)
• Build proper prototype (acrylic + 3D print?)

Next up...