RATING CORRECTION FOR LATERAL SETTLEMENT OF PARSHALL FLUMES

被引：12

作者：

ABT, SR

STAKER, KJ

机构：

[1] Dept. of Civ. Engrg, Colorado State Univ, Fort Collins, CO

[2] Dept. of Civ. Engrg, Colorado State Univ, Fort Collins, CO

来源：

JOURNAL OF IRRIGATION AND DRAINAGE ENGINEERING | 1990年 / 116卷 / 06期

关键词：

D O I：

10.1061/(ASCE)0733-9437(1990)116:6(797)

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

A 3-in. (7.62-cm) Parshall flume is installed in a channel and flow rates are measured with lateral flume crest slopes of 0, 3.6, 6.5, 9.0, 13.3, -3.8, -4.8, -7.2, and -11.8%. The apparent discharge is compared to the measured discharge for each slope with free outfall conditions. The results indicate that the Parshall flume accuracy is in error approximately 7% at a lateral slope of ±10%. It is determined that the flow measurement requires a 0.75% adjustment for each l%.of lateral settlement at the flume crest. A method for correcting the apparent discharge with the measured discharge is presented for variable lateral slope conditions. © ASCE.

引用

页码：797 / 803

页数：7

共 11 条

[1]

Abt S.R., Thompson K., Staker K., Discharge correction for longitudinal settlement of Parshall flumes, Trans, 32, 5, pp. 1541-1544, (1989)

[2]

Bos M.G., Discharge measurement structures, Publication No. 20, pp. 243-269, (1978)

[3]

Cone V.M., The Venturi flume, J. Agricultural Res, 9, 4, pp. 115-123, (1917)

[4]

Davis R.W., Deutsch S., A numerical-experimental study of Parshall flumes, Journal Hydraul. Res, 18, 2, pp. 135-152, (1980)

[5]

Parshall R.L., The improved Venturi flume, Trans, 89, pp. 841-851, (1926)

[6]

Parshall R.L., Rohwer C., The Venturi flume, Bulletin No. 265, (1921)

[7]

Robinson A.R., Parshall measuring flume of small sizes, Technical Bulletin No. 61, (1957)

[8]

Robinson A.R., Simplified flow corrections for Parshall flumes under submerged conditions, Civil Engineering, 35, 9, (1965)

[9]

Skogerboe G.V., Et al., Design and calibration of submerged open channel flow measurement structures, Part 2-Parshall flumes, Report WG31-3, (1967)

[10]

Water measurement manual, (1984)

← 1 2 →