PENGGUNAAN TEOREMA PI BUCKINGHAM PADA PENYELIDIKAN LOST HEAD UNTUK PIPA MENDATAR DENGAN ALIRAN TAK KOMPRESIBEL TURBULEN

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Indah Eko Cahyani
Agus Wibowo

Abstract

Lost  head  can be interpreted  as a decrease  in  the pressure
gradient  and is a measure  of  resistance  to  flow  through the  pipe.
Barriers  to  flow  through the  pipeline  will greatly  affect  the  power
needed  in  moving the  fluid  so that the  investigation of the  lost
head  on  pipe  important thing to do.  Use of  Buckingham  Pi
theorem  for  dimensional  analysis  will make it easier  to analyze
and  make the  move  quicker  and directed  experiments.  With the
initial data  is a function  of the  barrier  pipe diameter,  fluid
viscosity,  fluid density,  pipe length, the fluid velocity  and the
roughness of  the pipe.  The results indicate  a lost  connection  head
per  weight of  the fluid  (
w p /
)  is proportional to  the pipe
roughness  factor  (f) is proportional to  the length of  pipe  per  pipe
diameter  (L  /  d) is proportional to  the  fluid velocity  kuwadrat  per
two times gravity (v
2
/2g)
Keywords: Lost head, turbulent flow, the flow channel is closed

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