Results 21 to 30 of about 391,297 (307)

Hydraulic conditions of water flow in seminatural fish pass, A case study of the Skórka barrage on the Głomia river [PDF]

open access: yesActa Scientiarum Polonorum. Formatio Circumiectus, 2017
The article presents results of a field study of the fish pass located within the Skórka barrage on the Głomia river. The aim of the study was to identify water flow conditions in particular chambers of the fish pass. On the basis of results of the field
Mateusz Hämmerling   +2 more
doaj   +1 more source

Numerical Investigation of Critical Hydraulic Parameters Using FLOW-3D: A Case Study of Taunsa Barrage, Pakistan

open access: yesFluids, 2023
Hydraulic structures, such as barrages, play an important role in the sustainable development of several regions worldwide. The aim of this novel study is to identify the critical hydraulic parameters (CHPs) of Taunsa Barrage, built on the Indus River ...
Muhammad Waqas Zaffar   +2 more
doaj   +1 more source

Bayesian estimation of the hydraulic and solute transport properties of a small-scale unsaturated soil column

open access: yesJournal of Hydrology and Hydromechanics, 2016
In this study the hydraulic and solute transport properties of an unsaturated soil were estimated simultaneously from a relatively simple small-scale laboratory column infiltration/outflow experiment.
Moreira Paulo H. S.   +3 more
doaj   +1 more source

Algorithm for hydraulic system parameters of a dump truck [PDF]

open access: yesE3S Web of Conferences, 2023
At the initial stage of designing a dump truck it is necessary to determine the main units and assemblies of the vehicle, their parameters and dimensions. One of the systems of the dump truck is the hydraulic system.
Dubinkin Dmitry   +2 more
doaj   +1 more source

Effect of flow resistance in open rectangular channel [PDF]

open access: yes, 2016
The determination of flow resistance for open channels remains a challenge in practices. In this research, an experimental study was carried out to investigate the hydraulic roughness characteristics in an open channel.
Dini Mardhiyani, Dini Mardhiyani   +5 more
core   +3 more sources

Using Hydraulic Parameters to Estimate Longitudinal Dispersion Coefficient in Open Channel

open access: yesTikrit Journal of Engineering Sciences, 2009
A comparative analysis of previous theoretical and empirical equations is applied to evaluate their behavior in predicting dispersion coefficient in open channel.
Karim R. Gubashi
doaj   +1 more source

Hydraulic Model and Algorithm for Branched Hydraulic Systems Parameters Optimization

open access: yesProcedia Engineering, 2017
Abstract A model and a code for automated optimum design search are created. They are tested on an existing airplane hydraulic system. The objective function was obtained after mathematical transformation. The optimal parameters of pipelines and hydraulic cylinders were found. The minimal mass of a hydrosystem is the optimization criterion.
I. Bobarika, A. Demidov, S. Bukhanchenko
openaire   +1 more source

Optimization of Hydraulic Parameters of Iranshahr Alluvial Aquifer [PDF]

open access: yesAmerican Journal of Environmental Sciences, 2010
Problem statement: The Iranshahr aquifer consists of an unconfined layer. We simulated groundwater flow of the Iranshahr aquifer in a conceptual model. This model is a suitable tool for management of groundwater system and would also be effective when applied in other countries.
Rahnama-Rad, Jafar   +2 more
openaire   +1 more source

A Fast Algorithm for Parabolic PDE-based Inverse Problems Based on Laplace Transforms and Flexible Krylov Solvers [PDF]

open access: yes, 2015
We consider the problem of estimating parameters in large-scale weakly nonlinear inverse problems for which the underlying governing equations is a linear, time-dependent, parabolic partial differential equation.
Bakhos, Tania   +2 more
core   +1 more source

Drill Bit Selection in Yubei Block Based on Factor Analysis

open access: yesShiyou jixie, 2021
The drill bit used in the field has a poor matching degree with the drilled formation, resulting in slow ROP. It is necessary to supplement the selection factors based on the conventional bit selection method by considering the influence of hydraulic ...
Cheng Haoyu   +4 more
doaj  

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