Closure to "Broad-Crested weirs with rectangular compound cross sections" by M. Gogus, Z. Defne, and V. Ozkandemir

Date

2007-11-01

Author

Goegues, Mustafa
Defne, Zafer
Oezkandemir, Volkan

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

148
views

0
downloads

A series of laboratory experiments was performed in order to investigate the effects of width of the lower weir crest and step height of broad-crested weirs of rectangular compound cross section on the values of the discharge coefficient, the approach velocity coefficient, and the modular limit. For this purpose, nine different broad-crested weir models with rectangular compound cross sections and a model with a rectangular cross section were tested in a horizontal laboratory flume of 11.0 m length, 0.29 m width, and 0.70 m depth for a wide range of discharges. The compound cross sections were formed by a combination of three sets of step heights and three sets of lower weir crest widths. The sill-referenced heads at the approach channel and at the tailwater channel were measured in each experiment. The dependence of the discharge coefficient, approach velocity coefficient, and modular limit values on model parameters was investigated, and these quantities were compared with those of the broad-crested weir models with a rectangular cross section.

Subject Keywords

Agricultural and Biological Sciences (miscellaneous), Civil and Structural Engineering, Water Science and Technology

URI

https://hdl.handle.net/11511/66356

Journal

JOURNAL OF IRRIGATION AND DRAINAGE ENGINEERING

DOI

https://doi.org/10.1061/(asce)0733-9437(2006)132:3(272)

Collections

Department of Civil Engineering, Article

Suggestions

OpenMETU
Core

New Theoretical solution of stage-discharge relationship for slit weirs FERRO, Vito; Aydın, İsmail (American Society of Civil Engineers (ASCE), 2018-03-01) In this paper, the flow-process of a slit weir was analyzed on the basis of a theorem of dimensional analysis and incomplete self-similarity theory. The theoretically deduced stage-discharge formula then was calibrated using experimental data obtained for a ratio between the weir and the channel width, ranging from 0.05 to 0.25. The deduced stage-discharge relationship allowed measuring discharge values characterized by errors that, for 98% of the measured values, were less than or equal to ±5%. The perform...
Nonlinear mixing length model for prediction of secondary currents in uniform channel flows Aydın, İsmail (American Society of Civil Engineers (ASCE), 2009-01-29) A nonlinear turbulence model for numerical solution of uniform channel flow is presented. Turbulent stresses are evaluated from a nonlinear mixing length model that relates turbulent stresses to quadratic products of the mean rate of strain and the mean vorticity. The definition of the mixing length, based on a three-dimensional integral measure of boundary proximity, eliminates the need for solution of additional transport equations for the turbulence quantities. Experimental data from the literature for c...
Analytical formulation of maximum length limits of integral bridges on cohesive soils Dicleli, Murat (Canadian Science Publishing, 2005-08-01) This paper presents an analytical approach for predicting the length limits of integral bridges built on cohesive soils based on the flexural strength of the abutments and the low cycle fatigue performance of the steel H-piles at the abutments under cyclic thermal loading. First, H-piles that can accommodate large inelastic deformations are determined considering their local buckling instability. Then, a damage model is used to determine the maximum cyclic deformations that such piles can sustain. Next, non...
Analytical prediction of thermal displacement capacity of integral bridges built on sand Dicleli, Murat (SAGE Publications, 2005-02-01) In this research, analytical equations are developed to calculate the lateral displacement capacity and maximum length limits of integral bridges built on sand based on the low-cycle fatigue performance of the piles under cyclic thermal variations and the ultimate strength of the abutment under positive thermal variations. To formulate the displacement capacity and maximum length limits of integral bridges based on the low cycle fatigue performance of steel H-piles under cyclic thermal variations, first, H-...
Seepage from a rectangular ditch to the groundwater table Korkmaz, Serdar; Onder, Halil (American Society of Civil Engineers (ASCE), 2006-05-01) This study presents both a numerical and an experimental solution to seepage from a rectangular ditch or elongated pond to a groundwater table of infinite horizontal extent. Because of the unknown location of the free surface, the flow domain is transformed into the complex potential plane using the inverse formulation method. where the free surface becomes a straight line. The method of finite differences was used to solve the boundary value problem. The problem was also investigated experimentally using a...

Citation Formats

M. Goegues, Z. Defne, and V. Oezkandemir, “Closure to “Broad-Crested weirs with rectangular compound cross sections” by M. Gogus, Z. Defne, and V. Ozkandemir,” JOURNAL OF IRRIGATION AND DRAINAGE ENGINEERING, pp. 618–619, 2007, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/66356.