An agent is given a set of car shapes whose drag has been measured by computational fluid
dynamics, and an entire body style is held back that it never sees. It gets a sandbox, a shell and a
time budget. It decides its own method, trains whatever it likes, and pushes a submission when it
thinks it has improved.
The reference data
Velocity through the centreline. The blue region behind the car is the wake, and it is
most of the drag.Pressure on the same slice. High at the nose, low over the roof.A cross-section cut through the wake, three metres behind the nose.Where the drag actually comes from. Red adds drag, blue removes it. This is the
quantity the benchmark asks a model to get right.
