Flow thro thick perforated plate
Flow thro thick perforated plate
(OP)
Hi All,
I am trying to work out dp for flow thro thick perforated plate using method give in I.E. Idelchic - Handbook of fluid resistance, Diagram 8-3,
my parameters are:
Dia hole:3mm
Opening area:30%
pitch:4.3mm
thk:1mm
flow rate:36m^3/hr
viscosity:18cp
density:900 kg/m^3
assume
Lambda=0.02
and tau=1.16.
resistance factor=[(0.5+tau*(1-%open)^0.5*(1-%open)+(1-%open)^2+lambda*thk/dia hole]/%open^2
where using these formula my resistance factor work out as 18.6.
but reading from its result graph, using opening area and length over Dia hole, it should be some where around 17.
Would any one can help me figure out what I did wrong?
Thanks for all the comments
Regards
Reynold
I am trying to work out dp for flow thro thick perforated plate using method give in I.E. Idelchic - Handbook of fluid resistance, Diagram 8-3,
my parameters are:
Dia hole:3mm
Opening area:30%
pitch:4.3mm
thk:1mm
flow rate:36m^3/hr
viscosity:18cp
density:900 kg/m^3
assume
Lambda=0.02
and tau=1.16.
resistance factor=[(0.5+tau*(1-%open)^0.5*(1-%open)+(1-%open)^2+lambda*thk/dia hole]/%open^2
where using these formula my resistance factor work out as 18.6.
but reading from its result graph, using opening area and length over Dia hole, it should be some where around 17.
Would any one can help me figure out what I did wrong?
Thanks for all the comments
Regards
Reynold





RE: Flow thro thick perforated plate
Good luck,
Latexman
RE: Flow thro thick perforated plate
RE: Flow thro thick perforated plate