Aerodynamics and ventilation in rail tunnels (2015)
2 points by blueatlas 3 years ago | 1 comment- JNRowe 3 years agoThe piston effect Wikipedia page¹ is a good accompaniment for this, and has tonnes of links to rabbit hole yourself in.
I seem to recall there being some really intriguing TGV tunnel hoods with various suppressor designs to reduce the noise to surrounding villages, but I can't find them now. Anyone know of a good gallery or site for them?