• Confined underground spaces run out of air

• Cycling air requires energy

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

Photo by Jay Lo on Unsplash

Photo by Redd F on Unsplash

Mimic

Prairie Dog Burrows

• Mimic the burrows made by prairie dogs



• Harness natural difference in air velocity to create airflow

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

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

Revised Sketches

Speedrun Prototype

Low pressure

High pressure

Rapid

To visualize air movement

To visualize air movement

literally just stick paper onto surface to visualize airflow

Refined Prototype

image here :D

Low pressure

High pressure

Omnidirectionality

Thank you for listening!