Quote:
Originally Posted by aerohead
KB,it's just a baby.
It was a 3-sheets of plywood project with 3-sets of professionally fabricated constant-area turning-vanes and a recycled 115-VAC HVAC air-handler embedded inside,on casters.
It is a full-recirculation type with open nozzle/test-section.
She produces a 'wind' of only 23-mpg ( 37 km/h ) and can't even produce proper Reynolds number.
It does give you a clue though with tuft-testing and the 'students' love it.
Some 'jump' when they try to hold a parachute against the airstream! Fun.  |
Sorry to insist on this subject (may be a dedicated thread could be great
)
What are the size of the plywood sheets ?
What is the ratio of reduced models you can test in ?
What is the wind speeds you can simulate ?
IIRC : Lets say these are 4x8 feet sheets. You can have reduced models inside 1x1x2. For a 6 feet wide car, this is a 1:6 ratio for the reduced model. Such ration need winds 6 times faster than the 1:1 ratio, so the 23mph is simulating speeds of 4mph.
Don't hesitate to correct me
Denis.
PS Thanks a lot for all the information you share on this forum.