×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Need Formulas for Calculating Aero Forces

Need Formulas for Calculating Aero Forces

Need Formulas for Calculating Aero Forces

(OP)
Can anyone provide the basic calculations for converting Cd and Cl in real force numbers. I have volumns of tunnel data in coefficient form and I need to convert it to force numbers so the end user can understand it.
Thanks

RE: Need Formulas for Calculating Aero Forces

Ummmm.....I'm presuming this is what you are looking for:

L = 0.5*(rho)*(V^2)*(Planform Area)*Cl

D = 0.5*(rho)*(V^2)*(Planform Area)*Cd

where L = Lift
        D = Drag
        rho = fluid (air?) density
        V = relative freestream velocity of working fluid

Cheers,

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources