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student October 9, 2007 05:53

cylidrical coordinates
 
Dear sir, i have seen 2 types of cylidrical navier stoke equation . what is the analogy between them.

1. 1/r d(ru)/dr+ dv/dz=0

or

d(ru)/dr + d(rv)/dz =0


Praveen. C October 9, 2007 07:10

Re: cylidrical coordinates
 
They are identical, r and z are independent coordinates

d(rv)/dz = r dv/dz


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