Hydraulic characteristics of flow over rectangular weir with three rectangular bottom openings using ANN

Joint Authors

al-Baydani, Jabbar Hammud
al-Suhayli, Rafa Hashim
al-Mansuri, Nisrin Jasim Husayn

Source

Journal of University of Babylon for Engineering Sciences

Issue

Vol. 22, Issue 4 (31 Dec. 2014), pp.959-970, 12 p.

Publisher

University of Babylon

Publication Date

2014-12-31

Country of Publication

Iraq

No. of Pages

12

Main Subjects

Civil Engineering

Abstract EN

This research was based on laboratory experiments for hydraulic characteristics for a rectangular weir with three rectangular bottom openings (equal size of openings, different size of mid opening than an equal size sides opening.

fifty-six physical models were made for this structure with different geometrical dimensions.

Data set are analyzed in order to find the discharge coefficient for three flow cases when water level (under openings height or between openings height and under crest level and finally through openings and over the weir) and this analysis is done by using an equation prepared for each flow.

Dimensional analysis was made to relate the discharge coefficient with different geometrical and flow variables for each flow cases .

The highest value of the discharge coefficient, was obtained for flow case no.3, (Cdc = 0.462), while the lowest value of discharge coefficient was occurred for flow case no.1,(Cdp =0.0193).

The correlation of (Cdp , Cdf, Cdc)was higher negative with (b

For all the cases tested the coefficient of variation for the discharge coefficient were of range values (0.5632 - 0.211) which indicate the necessity of obtaining a model to describe this variation.

An ANN models was developed herein using (SPSS software) to express the discharge coefficient as a function of the different geometrical and flow variables, with range of correlation coefficient for all models (r=0.999 - 0.941) and applied the results in VISUAL Studio Net,2010 in order to be used by Engineers to find the discharge coefficient and the actual discharge of each model.

American Psychological Association (APA)

al-Suhayli, Rafa Hashim& al-Baydani, Jabbar Hammud& al-Mansuri, Nisrin Jasim Husayn. 2014. Hydraulic characteristics of flow over rectangular weir with three rectangular bottom openings using ANN. Journal of University of Babylon for Engineering Sciences،Vol. 22, no. 4, pp.959-970.
https://search.emarefa.net/detail/BIM-1140386

Modern Language Association (MLA)

al-Baydani, Jabbar Hammud…[et al.]. Hydraulic characteristics of flow over rectangular weir with three rectangular bottom openings using ANN. Journal of University of Babylon for Engineering Sciences Vol. 22, no. 4 (2014), pp.959-970.
https://search.emarefa.net/detail/BIM-1140386

American Medical Association (AMA)

al-Suhayli, Rafa Hashim& al-Baydani, Jabbar Hammud& al-Mansuri, Nisrin Jasim Husayn. Hydraulic characteristics of flow over rectangular weir with three rectangular bottom openings using ANN. Journal of University of Babylon for Engineering Sciences. 2014. Vol. 22, no. 4, pp.959-970.
https://search.emarefa.net/detail/BIM-1140386

Data Type

Journal Articles

Language

English

Notes

Includes appendices : p. 965-970

Record ID

BIM-1140386