Browsing Journal of Hydrologic Engineering by Title
Now showing items 1-20 of 3222
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2012 Midwest Drought in the United States
(American Society of Civil Engineers, 2013) -
2D Unit Sediment Graph Theory
(American Society of Civil Engineers, 2001)The erosive behavior and fundamentals of the black-box analysis of a catchment are briefly discussed, and the potentialities of functional series are considered as a model. Then a physically significant nonlinear functional ... -
2D Variably Saturated Flows: Physical Scaling and Bayesian Estimation
(American Society of Civil Engineers, 1998)A novel dimensionless formulation for water flow in two-dimensional variably saturated media is presented. It shows that scaling physical systems requires conservation of the ratio between capillary forces and gravity ... -
2D Zero-Inertia Model for Solution of Overland Flow Problems in Flexible Meshes
(American Society of Civil Engineers, 2016)A study of the efficiency of a zero-inertia model (ZI) for two-dimensional (2D) overland flow simulation is presented in this work. An upwind numerical scheme is used for the spatial discretization in the frame of finite-volume ... -
3D, Three-Phase Flow Simulations Using the Lagrangian–Eulerian Approach with Adaptively Zooming and Peak/Valley Capturing Scheme
(American Society of Civil Engineers, 2007)A fully three-dimensional (3D) multiphase flow model (3DMPS) is developed to simulate the migration of three phases (water, non-aqueous phase liquid and gas) using a fractional flow formulation for the governing equations. ... -
A 1D–2D Coupled Hydrodynamic Model for River Flood Prediction in a Coastal Urban Floodplain
(American Society of Civil Engineers, 2015)In this work, a one dimensional–two dimensional (1D–2D) coupled hydrodynamic model is developed for prediction of water levels in the lower Tapi River and its coastal urban floodplain (Surat city in Gujarat, India). A ... -
A Canal Drawdown Experiment for Determination of Aquifer Parameters
(American Society of Civil Engineers, 1998)A canal drawdown experiment was used in conjunction with borehole flowmeter measurements to determine the following hydrologic parameters: (1) the transmissivity ( -
A Dirac-δ Function Notation for Source/Sink Terms in Groundwater Flow
(American Society of Civil Engineers, 2005)The source/sink terms in groundwater flow are singularities that require special treatment in the numerical solution of a mathematical model. Except for the case of a point source, these singularities are not consistently ... -
A Generalized Approach to Model One-Dimensional Nonmonotonous Distributions Using Renyi Entropy Theory with Applications to Open-Channel Turbulent Flows
(ASCE, 7/4/2023 1)In open-channel turbulent flows, nonmonotonous distributions (e.g., velocity with dip phenomenon and type-II profiles of suspension concentration distributions) need more careful and appropriate modeling approaches ... -
A Hybrid Approach for Regional Low-Flow Frequency Analysis for the
(American Society of Civil Engineers, 2023/06/01)The Tigris and Euphrates basin is a challenging watershed because its water -
A Method Combining Seepage Theory and Model Simulation for the Identification of Potential Groundwater Resources
(ASCE, 2022/12/01)In recent years, climate change has caused extreme weather all over the world, including in Taiwan. Rainfall in Taiwan is distributed unevenly in both time and space, leading to a shortage of water resources which has ... -
A Modeling Framework for Bioretention Analysis: Assessing the Hydrologic Performance under System Uncertainty
(ASCE, 7/4/2023 1)Bioretention systems are one of the most common low-impact development (LID) facilities. In this paper, we develop a modeling framework that combines the one-dimensional Green and Ampt model with the outlet modeling of ... -
A New Empirical Formulation of the Areal Reduction Factor for Design Rainfalls Applied to the Umbria Region in Central Italy
(ASCE, 2024/04/01)A reliable estimate of the areal reduction factor (ARF), useful for implementing the upscaling procedure of point rainfall information, is of crucial relevance in many hydrological applications aimed at hydraulic structures ... -
A Note on the Time of Concentration
(ASCE, 2023/12/01)Time of concentration is an important parameter in rainfall–runoff models, such as the rational method and the unit hydrograph method, used for drainage design. There are several equations for computing the time of ... -
A Probabilistic Runoff Prediction Model Based on Improved Long Short-Term Memory and Interval Correction
(American Society of Civil Engineers, 2024)Accurate and reliable runoff prediction is essential for the efficient operation of hydropower systems. This paper presented a runoff probability prediction model that utilizes an enhanced long short-term memory (LSTM) ... -
A Risk Assessment of a Water-Sand Inrush during Coal Mining under a Loose Aquifer Based on a Factor Analysis and the Fisher Model
(ASCE, 8/1/2020 1)This paper aims to investigate the safety problems related to coal mining under a loose aquifer, and uses the Factor Analysis (FA) and Fisher discriminant methods to analyze and assess the risk of a water-sand inrush under ... -
A Semianalytical Solution for Transient Confined–Unconfined Flow with Non-Darcian Effect
(American Society of Civil Engineers, 2023/05/01)Pumping at a large rate can convert a confined flow to a confined–unconfined one in a confined aquifer. In this paper, a new semianalytical solution is proposed to investigate the mechanism of transient confined–unconfined ... -
A Simple and Efficient Method with Godunov-Type Schemes for Flow Simulation at Junctions of Open Channel Networks
(American Society of Civil Engineers, 2025)This paper presents a numerical model for simulating flows in open channel networks by discretizing the Saint-Venant equations via a Godunov-type scheme. The methodology integrates the Harten Lax van Leer (HLL) approximate ... -
A Stepwise and Dynamic C-Vine Copula–Based Approach for Nonstationary Monthly Streamflow Forecasts
(ASCE, 2021-11-03)In recent years, the stationary assumption of hydroclimatic variables as well as their temporal and spatial dependence structure have been challenged due to anthropogenic and climate changes. This study developed a stepwise ... -
A Stochastic Optimization Algorithm for Optimizing Flood Risk Management Measures Including Rainfall Uncertainties and Nonphysical Flood Damages
(American Society of Civil Engineers, 2016)One of the basic assumptions usually made by researchers for obtaining optimal designs of flood mitigation measures that take into account the associated uncertainties is consideration of flood damage probability directly ...