Review of explicit approximations to the Colebrook relation for flow friction

D Brkić - Journal of Petroleum Science and Engineering, 2011 - Elsevier
Because of Moody's chart has demonstrated applicability of the Colebrook equation over a
very wide range of Reynolds number and relative roughness values, this equation becomes …

Modeling rainfall-runoff process using soft computing techniques

O Kisi, J Shiri, M Tombul - Computers & Geosciences, 2013 - Elsevier
Rainfall-runoff process was modeled for a small catchment in Turkey, using 4 years (1987–
1991) of measurements of independent variables of rainfall and runoff values. The models …

Explicit friction factor accuracy and computational efficiency for turbulent flow in pipes

HK Winning, T Coole - Flow, turbulence and combustion, 2013 - Springer
Abstract The implicit Colebrook–White equation is the accepted method for accurately
estimating the friction factor for turbulent flow in pipes. This study reviews 28 explicit …

Forecasting daily lake levels using artificial intelligence approaches

O Kisi, J Shiri, B Nikoofar - Computers & Geosciences, 2012 - Elsevier
Accurate prediction of lake-level variations is important for planning, design, construction,
and operation of lakeshore structures and also in the management of freshwater lakes for …

A comparison of numerical and machine-learning modeling of soil water content with limited input data

F Karandish, J Šimůnek - Journal of Hydrology, 2016 - Elsevier
Soil water content (SWC) is a key factor in optimizing the usage of water resources in
agriculture since it provides information to make an accurate estimation of crop water …

Short-term and long-term streamflow forecasting using a wavelet and neuro-fuzzy conjunction model

J Shiri, O Kisi - Journal of Hydrology, 2010 - Elsevier
Streamflow forecasting is an important issue in hydrologic engineering, as it determines the
reservoir inflow as well as the flooding events, in spite of several other applications in water …

River flow estimation and forecasting by using two different adaptive neuro-fuzzy approaches

H Sanikhani, O Kisi - Water resources management, 2012 - Springer
This paper demonstrates the application of two different adaptive neuro-fuzzy (ANFIS)
techniques for the estimation of monthly streamflows. In the first part of the study, two …

[PDF][PDF] Modeling of dissolved oxygen in river water using artificial intelligence techniques

O Kisi, N Akbari, M Sanatipour, A Hashemi… - Journal of …, 2013 - academia.edu
The accuracy of artificial neural networks (ANNs), adaptive neuro-fuzzy inference system
(ANFIS) and gene expression programming (GEP) in modeling dissolved oxygen (DO) …

Computer-based analysis of explicit approximations to the implicit Colebrook–White equation in turbulent flow friction factor calculation

G Yıldırım - Advances in Engineering Software, 2009 - Elsevier
The implicit Colebrook–White equation has been widely used to estimate the friction factor
for turbulent fluid-flow in rough-pipes. In this paper, the state-of-the-art review for the most …

Global cross-station assessment of neuro-fuzzy models for estimating daily reference evapotranspiration

J Shiri, AH Nazemi, AA Sadraddini, G Landeras… - Journal of …, 2013 - Elsevier
Accurate estimation of reference evapotranspiration is important for irrigation scheduling,
water resources management and planning and other agricultural water management …