To find the relation between flow rate and discharge coefficient, water test were performed. Experimental variables were orifice diameter, length/diameter ratio. pressure drop and orifice entrance smoothness.
Followings are the results of this Study....
To find the relation between flow rate and discharge coefficient, water test were performed. Experimental variables were orifice diameter, length/diameter ratio. pressure drop and orifice entrance smoothness.
Followings are the results of this Study.
1. Flow rate varies irregulally for the pressure drop range between 0~3 kgf/㎠ but beyond that point flow rate was increased almost linearly to pressure drop.
2. The discharge coefficient was 0.6~0.7 for the pressure drop more than 3 kgf/㎠ but the value were irregular for the pressure drop less than 3kgf/㎠.
3. Discharge coefficient were increased from the range of 0.6~0.7 to the range of 0.88~0.93 when chamfered the □rifi□□ □□treance.