Results 41 to 50 of about 104,201 (166)

Research on the mixed discharge capacity of new hydraulic flap gate

工程科学与技术, 2013
:Using a conceptual model test to explore new type of hydraulic flap gate mixed discharge capacity of weir and orifice flow, getting the relationship of opening degree, flow, and the water level, proposed a method of calculation the mixed discharge ...
Lei Ming-Hui, Nie Ruihua
doaj  

Utilization of ANN technique to estimate the discharge coefficient for trapezoidal weir-gate

Open Engineering, 2022
Developing and assessing the performance of water projects and irrigation networks is based on many factors, such as flow measurement. Weir and gate structures have been extensively utilized for flow measurement and to get rid of sediments.
Sahib Jumana Hadi, Al-Waeli Luay Kadhim, Jaber Al Rammahi Ali Hussein   +2 more
doaj   +1 more source

Application of NARX neural network model for discharge prediction through lateral orifices

Alexandria Engineering Journal, 2018
Prediction of side flow from a main channel through lateral orifices mainly for irrigation and environmental purposes is of great importance in hydraulic engineering.
Riham Ezzeldin, Ahmad Hatata
doaj   +1 more source

Laboratory studies into hydraulic coefficient in curved planform labyrinth weir and piano key weir

Građevinar, 2019
In this paper, the discharge coefficient of piano key weirs is compared with that of curved planform labyrinth weirs. Results show that the discharge coefficient of piano key weirs is by 17.1% higher compared to that of curved planform labyrinth weirs ...
Behzad Zeraat, Mohammad Heidarnejad, Alireza Masjedi, Amir Abbas Kamanbedast, Houshang Hasoonizadeh   +4 more
doaj   +1 more source

Numerical and experimental study of the combination of labyrinth weir with orifice and its effect on discharge coefficient

علوم آب و خاک, 2021
The combination of a labyrinth weir with an orifice is a proper solution for floating material to pass over the weir and transfer sediment through the orifice. Additionally, creating a slot in the overflow wing leads to higher discharge.
A. R. Bahrebar, M. Heidarnejad, A. R. Masjedi, A. Bordbar   +3 more
doaj  

Behavior of the Discharge Coefficient for the Overflow Characteristics of Oblique Circular Weirs

Tikrit Journal of Engineering Sciences, 2013
This paper presents an experimental study and analysis for effect of the geometrical characteristics, of the oblique cylindrical weir on discharge coefficient, wherefrom three sizes used for the weir and two angles for the deviation.From the results, it ...
Emad Abdul Gabbar Al Babely
doaj  

Analysis of discharge characteristics of a symmetrical stepped labyrinth side weir based on global sensitivity

Journal of Hydroinformatics
In this paper, the discharge coefficient prediction model for this structure in a subcritical flow regime is first established by extreme learning machine (ELM) and Bayesian network, and the model's performance is analyzed and verified in detail.
Wuyi Wan, Guiying Shen, Shanshan Li, Abbas Parsaie, Yuhang Wang, Yu Zhou   +5 more
doaj   +1 more source

FLOW CALCULATIONS FOR A TWO-DIMENSIONAL IRRIGATION NOZZLE

Journal of Engineering, 2005
The most efficient nozzle is generally considered to be that for which the discharge coefficient is nearly unity. Nozzle dimensions influence the discharge coefficient.
Hussain Y. Mahmood, Hussain H. Ahmad , Munther A. Mussa   +2 more
doaj   +1 more source

LXGB: a machine learning algorithm for estimating the discharge coefficient of pseudo-cosine labyrinth weir. [PDF]

Sci Rep, 2023
Emami S, Emami H, Parsa J.
europepmc   +1 more source

Discharge Coefficients of Oblique Weirs

, 2011
Oblique weirs are those weirs placed at an angle with respect to the channel centerline. They can be used in canal applications where more discharge is needed, but there is limited freeboard. The discharge coefficients were determined for 54 different weirs by measuring total head for various flows over each weir. These weirs included sharp, half round
openaire   +2 more sources