Formula of diameter

  • Thread starter emutudeng
  • Start date
  • #1
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Homework Statement



My vocabulary is pretty bad in specialized English, so I have to post a picture of problem

There are three pipes, the cross-section changes and all measures are illustrative, I need to find an easy formula to find the diameter of d3, so I can create formula in Excel and by changing numbers it calculates the answer.

δ[adm]=2%(l1+l2+l3)


Homework Equations



Formulas are from topic of momentum and forces,
Maybe this helps
δ= M/W ⩽ δ[adm]

The Attempt at a Solution



It should become something like ω/M max * some coefficients, but I havent found anything form books.

Homework Statement





Homework Equations





The Attempt at a Solution

 

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Answers and Replies

  • #2
NascentOxygen
Staff Emeritus
Science Advisor
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δ[adm]=2%(l1+l2+l3)
Perhaps if you were to explain in words what this formula is about, someone might recognize what you are trying to do.
 
  • #3
7
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It means that the max refraction is 2%. The point is to find diameter of the upper pipe. It depends of the two others.
 

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