0000000000076629

AUTHOR

Salah Kouchakzadeh

showing 3 related works from this author

New-stage discharge relationships for free and submerged sluice gates

2012

Abstract The flow movement through a sluice gate is investigated for both free and submerged flow conditions. For free flow condition, the current dimensionless formula, indicated acceptable accuracy; while for submerged flow condition it was modified especially for low submerged condition. In this regard, Buckingham theorem along with the Incomplete Self-Similarity concept was employed and a new stage–discharge relationship was developed accordingly. Also, to achieve a suitable formula for submerged flow condition being accurate in low submergence, the maximum tailwater depth allowing the free flow condition and head loss factor were identified as missing parameters in the functional dimen…

SluiceFlow (psychology)MechanicsSluice gate ree flow submerged flow self-similarityTailwaterComputer Science ApplicationsCurrent (stream)Hydraulic headFlow conditionsModeling and SimulationSettore AGR/08 - Idraulica Agraria E Sistemazioni Idraulico-ForestaliStage (hydrology)Electrical and Electronic EngineeringInstrumentationDimensionless quantityMathematics
researchProduct

New stage-discharge relationships for radial gates

2013

Calibration of gates under free and submerged flow regimes is a classical hydraulic problem. In this paper dimensional analysis was applied to investigate both free and submerged flow conditions through a radial gate. The original Ferro’s method for submerged flow regime was modified by introducing the maximum allowable tail water depth permitting free flow. Based on Buckingham theorem and applying the Incomplete Self Similarity (ISS) concept different forms of the dimensional equations were proposed. According to the current available experimental data the most accurate dimensionless formula was proposed. The proposed dimensional equation not only is more accurate than the original Ferro’s…

HydrologyWater dischargeEngineeringPetroleum engineeringCalibration (statistics)business.industryEfflusso paratoieQuantitative Biology::OtherAgricultural and Biological Sciences (miscellaneous)Physics::Fluid DynamicsFree flowSettore AGR/08 - Idraulica Agraria E Sistemazioni Idraulico-ForestaliStage (hydrology)businessPhysics::Atmospheric and Oceanic PhysicsWater Science and TechnologyCivil and Structural Engineering
researchProduct

New-stage discharge relationship for weirs of finite crest lenght

2014

AbstractThe flow process of weirs of finite crest length is analyzed on the basis of the dimensional analysis and incomplete self-similarity theory. The crest length is incorporated in the functional stage-discharge relationship for weirs of finite crest length. The theoretically deduced stage-discharge formula was then calibrated using the experimental data compiled in this research. According to the current experimental data it is also concluded that the performance of the proposed stage-discharge formula is better than the previous dimensional stage-discharge formulae. Also, the proposed stage-discharge formula is applicable for all types of the weirs, i.e., long-crested, broad-crested, …

Water dischargeEngineeringanimal structuresCurrent (mathematics)Basis (linear algebra)business.industryMathematical analysisWeir of finite crest lengthAgricultural and Biological Sciences (miscellaneous)Stage-discharge relationshipembryonic structuresSettore AGR/08 - Idraulica Agraria E Sistemazioni Idraulico-ForestaliGeotechnical engineeringCrestStage (hydrology)businessIncomplete self-similarityFlow processWater Science and TechnologyCivil and Structural Engineering
researchProduct