نتایج جستجو برای: discharge coefficient

تعداد نتایج: 268903  

ژورنال: علوم آب و خاک 2019
Asadi, M. J., Najafizadeh, M. M., Najarchi, M., Shabanlou, S.,

In this study, the discharge coefficient of the circular side orifices was predicted using a new hybrid method. Combinations made in this study were divided into two sections: 1) the combination of two algorithms including Particle Swarm Optimization (PSO) and Genetic Algorithm (GA) and providing the PSOGA algorithm 2) using the PSOGA algorithm in order to optimize the Adaptive Neuro Fuzzy Infe...

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Journal: :La Granja: Revista de Ciencias de la Vida 2022

Andean ecosystems provide important hydrological services for downstream communities. Due to this importance, several studies have been carried out in recent years, with emphasis on processes identification and land use change impacts. In studies, but also the operation of small-scale irrigation drinking water projects, small streams equipped compound, sharp-crested weirs discharge estimation. ...

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Journal: :Journal of the Japan Institute of Energy 1994

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Journal: :آب و خاک 0
نقوی نقوی فغفور مغربی فغفور مغربی اسماعیلی اسماعیلی خداشناس خداشناس کورش وحید کورش وحید

abstract bottom rack intake is one of the most appropriate structures for diverting water in steep rivers. the problems of corrosion, deformity and clogging of the bottom racks in long term, inspires a new system of bottom intake in which a filled trench of porous media is replaced by the bottom racks. diversion of a specified amount of discharge through the porous media when void space in the ...

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Journal: :Journal of the Korean Vacuum Society 2010

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Journal: :Applied Water Science 2021

Abstract The circular crested weir (CCW) has been introduced as weirs having a high discharge coefficient (Cd). ratio of flow head to the radius crest ( H / R ) is most important parameter affecting Cd, that $${\text{Cd}} \approx a\left( {H/R} \right)^{b}$$ Cd ? a <mml:m...

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Journal: :TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B 1994

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Journal: :Journal of Korea Water Resources Association 2009

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ژورنال: تولید محصولات زراعی و باغی 2002
حسین افضلی مهر, , اقبال خرمی, , منوچهر حیدر پور, ,

Of the many hydraulic structures developed by man, the weir is perhaps the oldest. Weirs are used for the measurement of discharge and regulation of water flow. The most common types of weirs are broad-crested, sharp-crested, circular-crested and cylindrical, and ogee crest weirs. Advantage of the circular-crested and cylindrical weir compared to the other weirs include simplicity of design, st...

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Journal: :Journal of JSCE 2013

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