Study of water head effects on discharge distribution and streamlines pattern over the asymmetric rectangular piano key weirs

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

SAFARZADEH AKBAR; Khyat Rostami Siamak; Khayat Rostami Babak

Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: JOURNAL OF HYDRAULICS Year:2019 | Volume:14 | Issue:1 (141) Page(s): 1-17

Download Full-Text

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Persian Verion

View:

545

Download:

Cites:

Information Journal Paper

Title

Study of water head effects on discharge distribution and streamlines pattern over the asymmetric rectangular piano key weirs

Author(s)

SAFARZADEH AKBAR | Khyat Rostami Siamak | Khayat Rostami Babak | Issue Writer Certificate

Keywords

Asymmetric Pianokey weirQ1

Numerical simulationQ2

Analytical equationQ1

StreamlinesQ1

Discharge coefficientQ1

Abstract

In the present research, the flow over asymmetric rectangular Pianokey weirs with optimum geometrical ratio is modelled using experimental and numerical modeling. Effects of the water head on discharge distribution pattern over the weir crest is also studied. Effect of the relative height (P/Wu) is investigated on the efficiency of the Pianokey weir by changing the width of the unit key and keeping constant the weir height. The results showed that the weir efficiency increases by decreasing the relative weir height. Available Analytical equations in the literature have been applied to compute the discharge passing over the hydraulically optimum weir and also the Discharge coefficient for a given approach water head. Differences between the experimental and computed Discharge coefficient values are considerable and thus the accuracy of the available equations is not sufficient. In this study, new equations have been developed to compute the Discharge coefficient and discharge portions of the inlet key crest, outlet key crest and also the side crest of the asymmetric geometrically optimum Pianokey weirs against approach flow head. The consistency of the results of the new equations with experimental results is considerably higher than the results of available Analytical equations in the literature.

Cites

No record.

References

No record.

Cite

APA: Copy

SAFARZADEH, AKBAR, Khyat Rostami, Siamak, & Khayat Rostami, Babak. (2019). Study of water head effects on discharge distribution and streamlines pattern over the asymmetric rectangular piano key weirs. JOURNAL OF HYDRAULICS, 14(1 (141) ), 1-17. SID. https://sid.ir/paper/124221/en

Vancouver: Copy

SAFARZADEH AKBAR, Khyat Rostami Siamak, Khayat Rostami Babak. Study of water head effects on discharge distribution and streamlines pattern over the asymmetric rectangular piano key weirs. JOURNAL OF HYDRAULICS[Internet]. 2019;14(1 (141) ):1-17. Available from: https://sid.ir/paper/124221/en

IEEE: Copy

AKBAR SAFARZADEH, Siamak Khyat Rostami, and Babak Khayat Rostami, “Study of water head effects on discharge distribution and streamlines pattern over the asymmetric rectangular piano key weirs,” JOURNAL OF HYDRAULICS, vol. 14, no. 1 (141) , pp. 1–17, 2019, [Online]. Available: https://sid.ir/paper/124221/en

Related Journal Papers