1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Buckingham pi theorem

  1. May 21, 2016 #1
    1. The problem statement, all variables and given/known data
    https://projects.exeter.ac.uk/fluidflow/Courses/FluidDynamics3211-2/DimensionalAnalysis/dimensionalLecturese4.htmlaccording to this link , when we form the pi group , we need to put an exponent for the non-repeating variable ,( in this case , delta P is non-repeating variable , D , v and rho are repeating variable) FXVC7K7.png http://www.efm.leeds.ac.uk/CIVE/CIVE1400/Section5/dimensional_analysis.htm (refer to 7 )however , in this case , we do not have to put exponent on the non-repeating variable , the author just putF = (MLT^-2 ) instead of (MLT^-2)^d k9bJMDc.png

    2. Relevant equations


    3. The attempt at a solution
    Which is correct ? the first or second one ? is exponential needed for non-repeating variable ?
    P/s : this is not same as the question i posted in another thread....
     
  2. jcsd
  3. May 21, 2016 #2
  4. May 21, 2016 #3
    anyone can reply ?
     
  5. May 22, 2016 #4
    which is correct ?
     
  6. May 31, 2016 #5
    bump
     
  7. May 31, 2016 #6
    is it necessary to put exponent of d ? ??
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted