Quote:
Originally Posted by aerohead
I ran across this online.
http://iawe.org/Proceedings/8APCWE/K.Selvakumar.pdf
*They use a 1:10-scale model
*They need a 327.86 km/h air velocity for dynamic similarity
*Their highest test velocity is 12-m/s,when they need 91.07 m/s
*No where do they mention Reynolds number. |
Since they were comparing a digital model to a wind tunnel model both being 1:10 they don't need to scale the air speed.
Also since the model(both digital and wind tunnel) was pretty much a joke when it comes to representing a real car, this was more an exercise in CFD software validation.
If you want to do a real car and get results within about 5% you have to have rotating wheels and have flow through the grill taken into consideration.