TY - JOUR
T1 - Discharge coefficient for a water flow through a bottom orifice of a conical hopper
AU - Jan, Chyan-Deng
AU - Nguyen, Quang Truong
PY - 2010/8/1
Y1 - 2010/8/1
N2 - Discharge coefficients for water flow through a vertical, circular orifice at the bottom of a conical hopper were experimentally studied in the present paper. The conical hopper consists of a cylindrical hopper of inside diameter of 48 cm and a bottom cone of side slope of 45°. Experiments were carried out under different orifice diameters and water heads. The dependence of the discharge coefficient on the orifice diameter and water head was analyzed, and then an empirical relation was developed by using a dimensional analysis and a regression analysis. The results show that the larger orifice diameter or higher water head have a smaller discharge coefficient and the orifice diameter plays more significant influence on the discharge coefficient than the water head does. The discharge coefficient of water flow through a bottom orifice is larger than that through a sidewall orifice under the similar conditions of the water head, orifice diameter, and hopper size.
AB - Discharge coefficients for water flow through a vertical, circular orifice at the bottom of a conical hopper were experimentally studied in the present paper. The conical hopper consists of a cylindrical hopper of inside diameter of 48 cm and a bottom cone of side slope of 45°. Experiments were carried out under different orifice diameters and water heads. The dependence of the discharge coefficient on the orifice diameter and water head was analyzed, and then an empirical relation was developed by using a dimensional analysis and a regression analysis. The results show that the larger orifice diameter or higher water head have a smaller discharge coefficient and the orifice diameter plays more significant influence on the discharge coefficient than the water head does. The discharge coefficient of water flow through a bottom orifice is larger than that through a sidewall orifice under the similar conditions of the water head, orifice diameter, and hopper size.
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U2 - 10.1061/(ASCE)IR.1943-4774.0000213
DO - 10.1061/(ASCE)IR.1943-4774.0000213
M3 - Article
AN - SCOPUS:77955594350
SN - 0733-9437
VL - 136
SP - 567
EP - 572
JO - Journal of Irrigation and Drainage Engineering
JF - Journal of Irrigation and Drainage Engineering
IS - 8
M1 - 006008QIR
ER -