Example

The equations are
F  = sqrt(pL/R) = flow  
pL = pressure loss
R  = flow resistence

Pipes parallel:
1/sqrt(R) = 1/sqrt(R1) + 1/sqrt(R2) + 1/sqrt(R3)  ...
F  = F1 + F2 + F3 ...
pL = const

Pipes in series:
sqrt(R) = sqrt(R1) + sqrt(R2) + sqrt(R3)  ...
F  = const
pL = pL1 + pL2 + pL3 ...

These equations can be handled easily. R>0 and pL>=0.

EXAMPLE

* See
* http://home.arcor.de/janch/janch/_control/20090130-pipe-net/


--
Regards/GrüDFe  Jan C. Hoffmann
               Microsoft-kompatibel/optimiert für IE7+OE7