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Buckingham pi theorem

  • Thread starter foo9008
  • Start date
  • #1
678
4

Homework Statement


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


Homework Equations




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....
 

Answers and Replies

  • #2
678
4
Bump
 
  • #3
678
4
anyone can reply ?
 
  • #4
678
4
which is correct ?
 
  • #5
678
4
bump
 
  • #6
678
4
is it necessary to put exponent of d ? ??
 

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