hydrograph modeling and prediction of groundwater levels are the main concerns of most hydrogeological calculations and water resource management process. the present study is an application of sequential gaussian simulation (sgsim) method for predicting groundwater levels using recorded monthly data (180 months) related to 21 piezometers of behbahan aquifer, southwest of iran. to generate real...

The aim of this study is to discover the characteristics of the cooling water in the cylinder head of a high-power diesel engine by using the Computational Fluid Dynamics (CFD). A 3-D geometric model of a cylinder head water jacket was previously constructed using Unigraphics software. A mesh was then imposed on the model using the preprocessor of Fluent software, GAMBIT. Three types of thermal...

Bayesian Belief Networks for Predicting Drinking Water Distribution System Pipe 1 Breaks 2 Royce A. Francis ([email protected]), Seth D. Guikema ([email protected]), Lucas Henneman 3 ([email protected]) 4 a Department of Engineering Management and Systems Engineering, 1776 G St., NW #159, The George Washington 5 University, Washington, DC, USA 20006 6 b Department of Geography and Environmental Eng...

Accumulation of sediment transport volume and reduce the useful life of dams, water storage tanks can be. So far, many methods for calculating sediment this is presented in reservoirs are generally classified into two categories: mathematical modeling and experimental .This study examines the effect of using Gstars model parameters in the model, deposition of sediment in the reservoir tank and ...

Accurate representation of the spatial and temporal distribution of water vapour in the atmosphere represents a significant challenge in current meteorological practice. The quality of quantitative precipitation forecasting and of model representation of hydrologic processes is clearly dependent on accurate initialisation of the atmospheric moisture distribution. Atmospheric water vapour is oft...

The scaling theory approach has been widely used as an effective method to describe the variation of soil hydraulic properties. In conventional scaling, reference retention curves and scaling factors are determined from minimization of residuals. Most previous studies have shown that scaling factors are lognormally distributed. In this study, we derived physically based scaling factors, assumin...

Multi-species water quality models can be used to predict the fate and transport of contaminants such as arsenic in water distribution networks. In recent work, water quality models have been used to simulate hypothetical contamination events, estimate potential human health effects, and characterize the ability of sensors to detect contamination. Little work has been done to calibrate water qu...