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


Flow straightener

Flow straightener

Flow straightener

I'm trying to scheme up a flow straightener, and I'm sure there is some "rule of thumb" for the length of the straightener vs. the ID of the flow path, but I haven't found anything yet.

Any thoughts on this?  if fluid type matters, I'm dealing with water.




RE: Flow straightener

my sense is that it'd depend on the amount of vorticity you're trying to straighten

RE: Flow straightener

Or what you are trying to straighten it for.  ISO 5167 shows various types of flow straightening devices for use with square-edge orifice plates.

RE: Flow straightener

Thanks, I'll take a look at that ISO.



RE: Flow straightener

"Low-Speed Wind Tunnel Testing," by Barlow, Rae, and Pope should have a lot of useful information. Don't have the book in front of me, but I recall it has some good discussion on flow quality, straightening, etc.

The exact fluid shouldn't really matter - so long as you adjust methods for the fluid properties you're concerned with (water in your case). In general, you should be able to do a library/interweb search for low-speed, generally low-Reynolds # methods for flow quality control.  Good luck!

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