Journal of Hydraulic Research (J HYDRAUL RES)

Publisher: International Association for Hydraulic Research; International Association of Hydraulic Engineering and Research, Taylor & Francis

Journal description

Published bimonthly, this is a leading international scientific Journal for peer-reviewed research and technical developments in hydraulics and water science. All papers are reviewed by at least two members of the Editorial Board, consisting of internationally renowned experts in their specific field. The Journal is free of charge for corporate and individual members.

Current impact factor: 1.76

Impact Factor Rankings

2016 Impact Factor Available summer 2017
2014 / 2015 Impact Factor 1.762
2013 Impact Factor 1.347
2012 Impact Factor 1.037
2011 Impact Factor 1.067
2010 Impact Factor 1.005
2009 Impact Factor 0.801
2008 Impact Factor 0.883
2007 Impact Factor 0.436
2006 Impact Factor 0.527
2005 Impact Factor 0.449
2004 Impact Factor 0.582
2003 Impact Factor 0.383
2002 Impact Factor 0.418
2001 Impact Factor 0.458
2000 Impact Factor 0.406
1999 Impact Factor 0.516
1998 Impact Factor 0.667
1997 Impact Factor 0.48
1996 Impact Factor 0.569
1995 Impact Factor 0.62
1994 Impact Factor 0.33
1993 Impact Factor 0.422
1992 Impact Factor 0.548

Impact factor over time

Impact factor

Additional details

5-year impact 1.84
Cited half-life >10.0
Immediacy index 0.25
Eigenfactor 0.00
Article influence 0.67
Website Journal of Hydraulic Research website
Other titles Journal of hydraulic research, Journal de recherches hydrauliques, Journal of the I.A.H.R., Journal de l'A.I.R.H., IAHR/AIHR journal
ISSN 0022-1686
OCLC 3910556
Material type Periodical
Document type Journal / Magazine / Newspaper

Publisher details

Taylor & Francis

  • Pre-print
    • Author can archive a pre-print version
  • Post-print
    • Author can archive a post-print version
  • Conditions
    • Some individual journals may have policies prohibiting pre-print archiving
    • On author's personal website or departmental website immediately
    • On institutional repository or subject-based repository after either 12 months embargo
    • Publisher's version/PDF cannot be used
    • On a non-profit server
    • Published source must be acknowledged
    • Must link to publisher version
    • Set statements to accompany deposits (see policy)
    • The publisher will deposit in on behalf of authors to a designated institutional repository including PubMed Central, where a deposit agreement exists with the repository
    • STM: Science, Technology and Medicine
    • Publisher last contacted on 25/03/2014
    • This policy is an exception to the default policies of 'Taylor & Francis'
  • Classification

Publications in this journal

  • No preview · Article · Feb 2016 · Journal of Hydraulic Research
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    ABSTRACT: This paper assesses some recent trends in the novel numerical meshless method smoothed particle hydrodynamics, with particular focus on its potential use in modelling free-surface flows. Due to its Lagrangian nature, smoothed particle hydrodynamics (SPH) appears to be effective in solving diverse fluid-dynamic problems with highly nonlinear deformation such as wave breaking and impact, multi-phase mixing processes, jet impact, sloshing, flooding and tsunami inundation, and fluid–structure interactions. The paper considers the key areas of rapid progress and development, including the numerical formulations, SPH operators, remedies to problems within the classical formulations, novel methodologies to improve the stability and robustness of the method, boundary conditions, multi-fluid approaches, particle adaptivity, and hardware acceleration. The key ongoing challenges in SPH that must be addressed by academic research and industrial users are identified and discussed. Finally, a roadmap is proposed for the future developments.
    Preview · Article · Jan 2016 · Journal of Hydraulic Research
  • Daniel M. Robb · Susan J. Gaskin · Jean-Christophe Marongiu

    No preview · Article · Jan 2016 · Journal of Hydraulic Research
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    ABSTRACT: This paper presents the original design of a side-discharge valve based transient generator that can produce two types of pseudorandom binary signals: a maximum length binary signal and an inverse repeat signal. These two signals are both wide bandwidth, persistent and periodic, but the inverse repeat signal has the advantageous property that it is antisymmetric within each period. The two signals are used to extract the frequency response function of a single water pipeline in the laboratory. The experimental results demonstrate that the frequency response function extracted by the inverse repeat signal is closer to the theoretical linear results as obtained from the transfer matrix method due to it being able to cancel the effect of even-order nonlinearities. The customized transient generator is then applied to a pipeline with a leak. The location of the leak is successfully determined using the first three resonant peaks as extracted by the inverse repeat signal. © 2015 International Association for Hydro-Environment Engineering and Research
    No preview · Article · Dec 2015 · Journal of Hydraulic Research
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    ABSTRACT: This article presents a stochastic splash model for analysing the artificial rainfall caused by flood discharge splash in large hydropower stations. In this model, the splash phenomenon is considered as a random process, the flight paths of the splashed droplets are tracked by solving the particle motion equations, and the volume of each droplet is accumulated into a grid on the ground corresponding to its landing coordinates. A neural network was employed to compute the wind velocity vectors and the ground elevations to control the droplet motion and flight time. Thus, the model can account for the influence of the wind field and natural terrain on the rainfall distribution. An indoor splash experiment and field measurements were conducted to compare the measured data with the numerical results, and they showed satisfactory agreement. © 2015 International Association for Hydro-Environment Engineering and Research
    No preview · Article · Nov 2015 · Journal of Hydraulic Research
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    ABSTRACT: The negative distribution functions exist when the kinematic wave equation of overland flow is solved using the traditional lattice Boltzmann method. To resolve this shortcoming, an improved lattice Boltzmann method is introduced involving the multi-scale expansion of time coordinate (but not spatial coordinate). Based on the improved multi-scale expansion, a multi-scale analysis method and an undetermined coefficient method are used to gain the equilibrium distribution functions. To validate the proposed approach, special experiments with water flows on the impervious and pervious (with soil macropores) slopes have been conducted. The experimental results show that the improved lattice Boltzmann method is effective in describing overland flows; there are no numerical oscillations, and the distribution functions are positive when the relaxation time is from 0.8 to 2.0. © 2015 International Association for Hydro-Environment Engineering and Research
    No preview · Article · Nov 2015 · Journal of Hydraulic Research
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    ABSTRACT: Recent developments in integrated biomechanical-flow models have enabled the prediction of the influence of vegetation on the flow field and associated feedback processes. However, to date, such models have only been validated on the hydraulic predictions and/or mean plant position. Here we introduce an approach where dynamic surrogate plant motion, measured directly in flume experiments, is used to allow a validation approach capable of assessing the accuracy of time-dependent flow–vegetation interaction within a numerical model. We use this method to demonstrate the accuracy of an existing Euler–Bernoulli beam model in predicting both mean and dynamic plant position through time and space. © 2015 International Association for Hydro-Environment Engineering and Research
    No preview · Article · Nov 2015 · Journal of Hydraulic Research
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    ABSTRACT: This paper is about aquatic vegetation, written by a biologist, and is aimed at those working in hydraulics, hydrology, fluvial geomorphology and related fields. It provides information on the basic biology of riverine plants, their evolution, their basic requirements and their distribution patterns in space and time. Key ecological processes, such as succession, are described. It discusses how these plants can be grouped according to their shapes and traits and how these are associated with specific types of hydraulic habitat. The realistic parameterization of empirical experiments is considered. The application of fundamental hydraulic research to environmental management is discussed, focusing on eutrophication, channel conveyance and the downstream impacts of dams. © 2015 International Association for Hydro-Environment Engineering and Research
    No preview · Article · Nov 2015 · Journal of Hydraulic Research
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    ABSTRACT: A high-resolution typhoon-induced storm surge model based on the unstructured grid finite-volume method was developed for the Shanghai coast. The storm surge generated by Typhoon Prapiroon (2000) was simulated, and the results demonstrated good agreement with observations. The average relative error in the simulated water level was 12.8%. The statistical difference between the predicted and observed typhoon tracks was also analysed using data from 2004 to 2011. After Johnson transformation, the angular deviation follows a normal distribution. Five simulations were conducted for the observed track and four synthetic tracks (deviating 30° and 45° clockwise and counterclockwise from the observed track). The simulations reveal that the surge level is sensitive to the deviation angle. A new predictive scheme with optional angles deviating from the forecasted track was developed and applied to Typhoon Matsa (2005). The results indicate a significant reduction in the error of the peak water level. © 2015 International Association for Hydro-Environment Engineering and Research
    No preview · Article · Nov 2015 · Journal of Hydraulic Research
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    ABSTRACT: Three-dimensional simulations are performed to investigate flow and transport mechanisms through submerged vegetation under the influence of tidal oscillations. A global minimum least squares method is proposed to compute the spatially-averaged lateral and vertical diffusivities. Our results indicate that the longitudinal dispersion coefficients have sinusoidal behaviour and oscillate with a similar frequency as the tidal forcing. The dispersion coefficients are reduced at high water and enhanced at low water, which may be attributed to increased vertical shear and turbulence due to stronger bottom drag in the presence of vegetation. The effects of varying tidal amplitude and frequency are investigated. The revealed regularity of variation in the dispersion process suggests that an empirical formulation describing the longitudinal dispersion coefficient may be found. Our findings are applicable for specific types of vegetation with intermediate submergence, such as mangrove pneumatophores planted in estuaries.
    No preview · Article · Nov 2015 · Journal of Hydraulic Research
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    ABSTRACT: A study of weak bed load over a plane bed is presented with a particular focus on the motion and diffusion of individual particles that were tracked along their movements. Grain position, velocity and acceleration were measured with particle-scale resolution; ensemble statistics over a significant sample of particle trajectories were then computed, enabling unsteady phases of particle motion (corresponding to entrainment and disentrainment) to be identified. Based on the experimental findings, a physically-based conceptual model for particle kinematics consisting of an initial (entrainment) unsteady phase, a quasi-steady phase, and a final (disentrainment) unsteady phase is explored. The unsteadiness effects in particle dispersion due to entrainment and disentrainment, typically overlooked in previous studies, are explicitly quantified by analysing the time evolution of the particle position variance. Starting with a previously published model of particle diffusion, a refined model is proposed which explicitly accounts for the unsteadiness effects in particle motion. © 2015 International Association for Hydro-Environment Engineering and Research
    No preview · Article · Oct 2015 · Journal of Hydraulic Research
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    ABSTRACT: The development of secondary boundary layer for a steady entry of fluid flow in a horizontal curved pipe is analysed using the turbulent boundary layer approach. Outside the boundary layer (within the central core), the inviscid fluid motion is treated by using the Euler and the continuity equations, whereas inside the boundary layer, the Pohlhausen method is applied, assuming a one-seventh power law of velocity for solving the integrals of the Navier–Stokes equations. The growth of the secondary boundary layer is slow with an increase in azimuthal angle, while it is gradual along the outer pipe-wall with an increase in radial angle and becomes abruptly faster near the separation point. The wall shear stress decreases with azimuthal angle, whereas it increases with radial angle attaining a peak and then decreases to zero at the separation point along the outer pipe-wall. © 2015 International Association for Hydro-Environment Engineering and Research
    No preview · Article · Oct 2015 · Journal of Hydraulic Research
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    ABSTRACT: Characteristics of turbulent mixing-length, length scales and anisotropy in the wall-wake flow downstream of a sphere placed on a rough wall are studied. The Prandtl's mixing-length in wall-wake flow increases compared to that in upstream flow, while the Taylor microscale and the Kolmogorov length scale decrease. As the downstream distance increases, the defects (difference between upstream and downstream distributions) in vertical distributions of mixing-length and length scales gradually disappear to recover their distributions in undisturbed upstream flow. These distributions of the defects exhibit some degree of similarity, as they are scaled by their individual peak values and the vertical distance is scaled by the height of occurrence of their individual half-peak defects. In anisotropy analysis, the streamwise, spanwise and vertical components of anisotropy in wall-wake flow are less, more and invariant, compared to their individual upstream trends. However, the former two components recover with an increase in downstream distance.
    No preview · Article · Oct 2015 · Journal of Hydraulic Research
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    ABSTRACT: Hydraulic systems are dynamically susceptible in the presence of entrapped air pockets, leading to amplified transient reactions. In order to model the dynamic action of an entrapped air pocket in a confined system, a heuristic mathematical formulation based on a conceptual analogy to a mechanical “spring-damper“ system is proposed. The formulation is based on the polytropic relationship of an ideal gas and includes an additional term, which encompasses the combined damping effects associated with the thermodynamic deviations from the theoretical transformation, as well as those arising from the transient vorticity developed in both fluid domains (air and water). These effects represent the key factors that account for flow energy dissipation and pressure damping. Model validation was completed via numerical simulation of experimental measurements.
    No preview · Article · Oct 2015 · Journal of Hydraulic Research