Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations MintJulep on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Logarithmic Scales

Status
Not open for further replies.
hawker5

hawker5

Specifier/Regulator
Joined
Jan 28, 2011
Messages
5
Location
CA
Could someone please explain in simple short terms why a logarithmic scale would be used to plot a water flow test results? From a hydrant.
 
Sort by date Sort by votes
cause the plot looks more like a straight line and you can see the value no matter if it is a small value or a very large value without needing to draw your plot on size A10000 paper.
 
Upvote 0 Downvote
And the reason BigInch's explanation is correct is that flow is proportional to the square root of the velocity pressure that you're measuring with your flow gizmo. Or, stated another way, velocity pressure is proportional to the flow squared.

Good on ya,

Goober Dave

 
Upvote 0 Downvote
Status
Not open for further replies.

Part and Inventory Search

Sponsor

Back
Top