747heavy wrote:typical yaw test in a full scale tunnel with a real vehicle.
note: it´s a 5 belt tunnel and you see the actuators which hold the car in place.
5 belt tunnel = 4 belts to drive the whhels & 1 belt to simulate the moving road.
closeup on the actuators:
typical 5 belt full scale tunnel design used for road/race car development
that 5 belt thing with vehicle suspended on stuts...how close would this come to real world compared to a non moving ground tunnel with decent boundary layer removal?
There is only the middle section of the car under moving belt conditions and the
mix between moving ground /non moving ground is happening under the car in sill
region .. I can imagine this will lead to all new variables to compensate...
I really like the idea of a real tunnel and actually drive the car not the ground..
as some Nascar team is doing.