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


Difference between velocity potential and circulation

Difference between velocity potential and circulation

Difference between velocity potential and circulation

I am wondering that what is the difference between velocity potential and circulation when both gives same formula.

RE: Difference between velocity potential and circulation

I think you need to elaborate...

Circulation is merely a defined as a velocity integral along a closed path, velocity potential is based on Helmholtz-Decomposition which decomposes the flow field as a scalar and vector potential. The vector potential is basically vorticity. When you ignore the vector potential potential an very useful for estimating the flow field. One step up you can assume the vorticity is lumped into discrete elements and calculate complex phenomenon through Biot Savart law. the connection between circulation and potential is the 2D closed surface integral of vorticity flux is equal to the circulation integral around the boundaries of this closed surface (greens theorem). So usually when you lump vorticity you assign a circulation to which is really a quantity of vorticity. Maybe that answers your questions? Please elaborate....

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!


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close