Anyone with some downforce knowledge?
10-02-13, 10:48 AM
#1
Anyone with some downforce knowledge?
Ok , so using this formula
http://en.wikipedia.org/wiki/Downforce <-- wont copy paste .
I'm trying to find what the angle of attack should be on a wing .
according to this http://en.wikipedia.org/wiki/Angle_of_attack
the problem is on a car's wing the angle of attack is the opposite as shown here . so does that mean that it would be negative angle ,
for example .. if said wing is said to have 15 degrees angle . how would you plot that into the equation ?
as a 15* ?? do you plot it as a decimal .54, fraction ? 360/15 ? is it negative since the angle is opposite as to what it shown for aircraft which is where normally the equation is used for ?
http://en.wikipedia.org/wiki/Downforce <-- wont copy paste .
I'm trying to find what the angle of attack should be on a wing .
according to this http://en.wikipedia.org/wiki/Angle_of_attack
the problem is on a car's wing the angle of attack is the opposite as shown here . so does that mean that it would be negative angle ,
for example .. if said wing is said to have 15 degrees angle . how would you plot that into the equation ?
as a 15* ?? do you plot it as a decimal .54, fraction ? 360/15 ? is it negative since the angle is opposite as to what it shown for aircraft which is where normally the equation is used for ?
Last edited by Tem120; 10-02-13 at 10:52 AM.
10-02-13, 11:14 AM
#2
Wastegate John
iTrader: (13)
Join Date: Feb 2008
Location: Long Island NY 11746
Posts: 2,979
Likes: 0
Received 9 Likes
on
9 Posts
The angle of attack is dependant on the conditions and the desired amount of downforce.
The manufacturer should have that info available to you if they are any good.
Example: APR APR Performance - GTC-300 - CFD Data & Analysis
The manufacturer should have that info available to you if they are any good.
Example: APR APR Performance - GTC-300 - CFD Data & Analysis
10-02-13, 11:20 AM
#3
The angle of attack is dependant on the conditions and the desired amount of downforce.
The manufacturer should have that info available to you if they are any good.
Example: APR APR Performance - GTC-300 - CFD Data & Analysis
The manufacturer should have that info available to you if they are any good.
Example: APR APR Performance - GTC-300 - CFD Data & Analysis
it also gives CL , per setting , at 15* it has -.075 CL so if at 15* its at that would it be redundant to plug the angle of attack again since it was already calculated into the lift coefficiency ?
Last edited by Tem120; 10-02-13 at 11:25 AM.
Thread
Thread Starter
Forum
Replies
Last Post