Research Paper
Developing turbulent flows in rectangular channels: A parametric study

Hossein Bonakdari; Gislain Lipeme-Kouyi; Girdhari Lal Asawa

Volume 1, Issue 2 , June 2014, Pages 51-56

Abstract
  The developing turbulent flow in an open channel is a complex three-dimensional flow influenced by the secondary currents and free surface effects and is, therefore, not amenable to analytical solution. This paper aims to study the impact of three key hydraulic parameters (relative roughness, the Froude ...  Read More

Research Paper
Head-discharge relationship of flumes: Energy loss versus boundary layer

Matthieu Dufresne; José Vazquez

Volume 1, Issue 2 , June 2014, Pages 57-60

Abstract
  Long-throated flumes are measurement structures often used in water and wastewater systems to determine the flow discharge. The head-discharge relationship of long-throated flumes is traditionally determined following the critical flow theory and the boundary layer concept. After a review of the traditional ...  Read More

Research Paper
Implementation of the skyline algorithm in finite-element computations of Saint-Venant equations

Reza Karimi; Ali Akbar Akhtari; Omid Seyedashraf

Volume 1, Issue 2 , June 2014, Pages 61-65

Abstract
  Solving a large sparse set of linear equations is of the problems widely seen in every numerical investigation in the entire range of engineering disciplines. Employing a finite element approach in solving partial derivative equations, the resulting stiffness matrices would contain many zero-valued elements. ...  Read More

Research Paper
Developing a framework for compatibility analysis of predictive climatic variables distribution with reference evapotranspiration in probabilistic analysis of water requirement

Ehsan Fadaei Kermani; Gholam Abbas Barani; Mohamad Javad Khanjani

Volume 1, Issue 2 , June 2014, Pages 66-73

Abstract
  In this paper, a new framework has been developed for compatibility analysis of predictive climatic variables distribution with reference evapotranspiration (ETo) in probabilistic analysis of water requirement. Initially, measured monthly meteorological data of four cities of Iran including Kerman, Shiraz, ...  Read More

Research Paper
Assessment of some famous empirical equation and artificial intelligent model (MLP, ANFIS) to predicting the side weir discharge coefficient

Abbas Parsaie; Amir Hamzeh Haghiabi

Volume 1, Issue 2 , June 2014, Pages 74-79

Abstract
  Allocation and removing of excess water from the irrigation and drainage network is one of the most important activities in the management of these networks. Side weir is one of the most common structures for this purpose. Study on the flow Hydraulic characteristics of this structure included two parts, ...  Read More

Research Paper
Effects of curvature submerge vane in efficiency of vortex settling basin

Amin Hajiahmadi; Mojtaba Saneie; Mehdi Azhdari Moghadam

Volume 1, Issue 2 , June 2014, Pages 80-85

Abstract
  In this century due to population growth, the use of river water has become more complicated. Since most rivers pass across loose and erodible areas, they always act as the most important factor of transferring eroded materials from the solid crust of the earth.  Vortex basins are among the solutions ...  Read More

Research Paper
A trading-partnership model for estimating discharge permits in river systems by Ant Colony optimization

Seyed Masoud Tayefeh Cheraghali; Amin Sarang; Mohammad Ali Zahed; Hossein Vahidi; Moazameh Akbari

Volume 1, Issue 2 , June 2014, Pages 86-92

Abstract
  One of the main problems in the quality control of rivers is the high control cost imposed upon pollutant units. The cooperative policy approach in the treatment process between two or more pollutant units is a new and economic perspective in the environmental management of catchment basins. Origins ...  Read More

Research Paper
Quantitation of nitrite in soil and water samples based on central composite design and a new Griess reagent

Masoud Shariati-Rad; Mohsen Irandoust; Farahnaz Niazi

Volume 1, Issue 2 , June 2014, Pages 93-97

Abstract
  A simple and rapid spectrophotometric method for the determination of nitrite in water and soil preparation samples has been developed. Determination of nitrite is based on diazotization of p-nitro aniline with nitrite and subsequent coupling with 4-amino-3-hydroxynaphthalene-1-sulfonic acid in hydrochloric ...  Read More