"452","12","archive","1",,,"disk0/00/00/04/52","2010-11-20 21:52:47","2017-01-13 20:36:30","2010-11-20 21:52:47","article",,,"show","","","","","","","","","","","0",,,"Trout","Thomas J.","","","","",,,,,"","","Orifice Plates for Furrow Flow Measurement: Part I - Calibration",,"pub","research","d_unclass",,,"ORIFICES, due to their discharge sensitivity to
head, are potentially the most accurate open
channel flow measurement device and consequently, the
best device for determining furrow infiltration rates by
the inflow-outflow method. Laboratory calibration
determined that orifices under submerged flow
conditions are insensitive to boundaries as close as one-half
diameter from an edge, allowing practical field use
of multi-holed orifice plates in furrows. Submerged flow
discharge coefficient for square-edged orifices with the
plate thickness less than one-third of the diameter is
0.625. Free flow coefficients vary both with orifice size
and head.","1986","published",,,"0570",,"",,"public",,,,"Transaction of the ASAE","29","1",,,"103-106",,,,,,,,,,,,,,"unknown",,,,,,,,,"","","",,"","",,,,,,,"",,,,
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