×
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

Looking For Pressure Drop Correlations Of Non-Newtonian Two-Phase Flow in The Pipeline

Looking For Pressure Drop Correlations Of Non-Newtonian Two-Phase Flow in The Pipeline

Looking For Pressure Drop Correlations Of Non-Newtonian Two-Phase Flow in The Pipeline

(OP)
Hi,

Can anyone guide me to have good correlations or equations to measure the pressure drop of non-newtonian two-phase flow in the pipeline?

Thanks

RE: Looking For Pressure Drop Correlations Of Non-Newtonian Two-Phase Flow in The Pipeline

Basically you can use any equation for pressure drop equation, such as Colebrook-White, the key being to have a good representation of shear stress vs. fluid velocity for your fluid for conditions present at various significant points within the pipeline, which will be nonlinear. Pressure drop is most easily calculated across relatively short segments of pipe over which the shear stress can be considered constant.

Various types of flow conditions can complicate the process, such as if significant temperature or velocity changes occur in the pipe's radial direction. That could result in slow flow against the pipe wall where cooler temperatures persist and high velocity in the central core where high temperatures may occur. In that case you may want to develop additional correlations to obtain an effective shear stress at that cross section.

You may be able to estimate the two phase flow behavior, after considering the above effeccts, but perhaps not. Nothing but the most basic pipeline profile would even approach an easy task.

You may find some additional help by researching further into the hydraulics of drilling well fluids. A number of correlations exist for two phase flows and nonNewtonian flows, but unfortunately not by area of expertise.

Whatever results you obtain, I would think that you will want to verify with extensive near full scale testing.

RE: Looking For Pressure Drop Correlations Of Non-Newtonian Two-Phase Flow in The Pipeline

(OP)
Thanks so much for clarifying.

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