×
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!

*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

fluid mechanics

fluid mechanics

fluid mechanics

(OP)
simple question.

How do I calculate the velocity of water leaving a tap of characteristic length 0.001m.  I know the static and atmospheric pressures.  I also know density and height.  I guess I have to use
velocity x density x characteristic length divided by viscosity

I know this equals the reynolds number and was hoping I could rearrange the formula but don't have the viscosity or Re.

Can I do it another way?

RE: fluid mechanics

If its not a homework assignment then it should be fairly easy to find the viscosity of water. If your temperature is in the neighbourhood of 15 deg C == 60 deg F then you could use 1 cP

Best Regards

Morten

RE: fluid mechanics

(OP)
we know velocity = flow rate / fluid flow area (i.e 22/28 * d2), where d = pipe inside diameter.

you collect fixed amount of water eg 10 lit. you note down time required to get 1000 lit. Say time required = 20 second
so flow rate = 1000 lit = 1 m3 / 10sec = 0.1 m3 /s .now you divide the flow rate by flow area , you will get velocity of water.

Pawan kumar (chemical engineer)  

RE: fluid mechanics

Maybe i didnt read the question close enough Pawan Kumar is right. Forget about the Re and do something like the suggested.

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! Already a Member? Login



News


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