BUCKINGHAM'S PI THEOREM The Buckingham π theorem is a key theorem in dimensional analysis . Buckingham ' s Pi theorem states that: If there are n variables in a problem and these variables contain m primary dimensions (for example M, L, T) the equation relating all the variables will have (n-m) dimensionless groups. Buckingham referred to these groups as π groups. The final equation obtained is in the form of : π l = f(π 2 , π 3 ,….. π n-m ) The π groups must be independent of each other and no one group should be formed by multiplying together powers of other groups. This method offers the advantage of being ...
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