Journal of Hydraulic Research Impact Factor & Information

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: 1.35

Impact Factor Rankings

2015 Impact Factor Available summer 2015
2013 / 2014 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 1.15
Cited half-life 0.00
Immediacy index 0.23
Eigenfactor 0.00
Article influence 0.50
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
    ​ green

Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: Field-based research has always been a source of inspiration and a driving force in experimental and theoretical fluvial hydraulics, essentially underpinning all major developments in this area over the past few decades. The recent emergence of advanced measurement capabilities for field applications opens new avenues and opportunities for the refinement of the existing predictive approaches and for addressing forthcoming hydro-environmental problems. This paper considers historic hydraulic field research and outlines recent developments and current trends. Useful definitions are introduced to aid the standardization of various field activities. A method of field experimentation is discussed employing recent examples, and challenging tasks that appeal for application of field methods are highlighted. Innovative techniques are briefly discussed as the preconditions for the development of novel approaches for field research.
    Journal of Hydraulic Research 09/2015; 53(1). DOI:10.1080/00221686.2015.1012126
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    ABSTRACT: The design and results from a hydraulic scale model of mass oscillations in a hydropower plant with a closed surge tank constructed as an underground rock cavern are presented. The results from the model test of an existing hydropower plant at scale 1:65 are compared with field measurements. The main contributions of this work include (1) an assessment of whether hydraulic models may be applied to evaluate hydropower tunnels with closed surge tanks, (2) a novel approach to scale atmospheric air pressure, and (3) an evaluation of the thermodynamic behaviour in the model and prototype. The hydraulic model is shown to provide an accurate representation of the maximum (first) amplitude, with a relative error of less than 4%. An estimate of the period of the oscillations has a relative error of less than 1%. The model has higher dampening compared with the prototype, resulting in the 20% relative error of the second amplitude. Both the model and prototype reveal approximately adiabatic behaviour of the closed surge tank.
    Journal of Hydraulic Research 06/2015; DOI:10.1080/00221686.2015.1050077
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    ABSTRACT: This study focuses on understanding the hydraulic design of baffled contact tanks using computational fluid dynamics simulations. In particular, we address the key question: for a given footprint of a rectangular tank with a specified inlet width (Winlet), how does the hydraulic efficiency of a baffled tank depend on the configuration of internal baffles? In an effort to address this question, a carefully conceived parametric study consisting of 30 high-resolution two-dimensional (planar) simulations was conducted to quantify the hydraulic efficiency of a laboratory scale tank as a function of dimensional relationships between key baffle design dimensions (baffle opening length Lbo, baffle channel width Wch, and baffle channel length LT). Simulated longitudinal velocity profiles and flow through curves show good agreement with previous experimental results. The results indicate that the hydraulic efficiency can be optimized by ensuring that Lbo/Wch ≈ 1 and orienting baffles along the longer direction of the rectangular footprint.
    Journal of Hydraulic Research 06/2015; DOI:10.1080/00221686.2015.1040086
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    ABSTRACT: This paper reports on unsteady pressure measurements on the runner blades of a Kaplan turbine model as well as torque and radial load bearing measurements on the corresponding prototype at several operating points to investigate the sources of periodic loads exerted on the runner when operating at the best efficiency point and off design. Pressure measurements on the model runner blades indicated that the spiral casing delivers a poorly conditioned flow to the guide vanes close to the lip-entrance junction, resulting in flow separation on the guide vanes. The asymmetric flow delivered to the runner induces large oscillations with respect to the guide vane passing frequency, runner frequency and its harmonics to the runner blades. The torque measurements on the prototype also revealed an asymmetric flow at the distributor outlet. The bearing radial load measurements performed on the prototype support the torque measurement results. The asymmetric hydraulic loads on the runner result in shaft wobbling, and the oscillatory forces exerted on the blades are transferred to the main shaft and bearings. Another source of oscillating forces exerted on the runner blades is the rotating vortex rope (RVR) formation that occurs at part-load operation of the turbine and induces pressure fluctuations at two sub-synchronous frequencies to the runner.
    Journal of Hydraulic Research 06/2015; DOI:10.1080/00221686.2015.1040085
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    ABSTRACT: The numerical simulation of transient mixed flows requires suitable mathematical models that must be validated by comparison with experimental data. For this reason, a simple benchmark test case is proposed in this paper. A laboratory study was carried out in a circular conduit, specifically designed to induce a strong pipe filling bore and repeated regime transitions following the sudden opening of an internal gate. No gates or weirs were installed at the pipe ends, and ventilated conditions were guaranteed. Measurements of both pressure head and velocity are provided as supplementary material. The test case was simulated by using two finite volume shock-capturing schemes: a classic Preissmann slot model, and a recent two-equation model. In both cases, numerical results are in good agreement with experimental data, despite the low pressure wave celerity assumed to minimize spurious oscillations. When realistic celerity values are adopted, the two-equation model appears to be more robust in handling flow regime transitions.
    Journal of Hydraulic Research 05/2015; DOI:10.1080/00221686.2015.1038324
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    ABSTRACT: The author thanks the discussers for their comments. The author would like to complement the contribution of the discussers with a brief analysis of the most striking approaches in the context of the shallow water wave theory. In particular, the dispersive characteristics of some Boussinesq-type approaches are discussed.
    Journal of Hydraulic Research 05/2015; 53(2):284-285. DOI:10.1080/00221686.2015.1012656
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    ABSTRACT: A tidal bore is an unsteady rapidly-varied open channel flow generated by the swift advance of the early flood tide in a funnel-shaped river estuary when the tidal range exceeds 4.5 to 6 m. This contribution presents a detailed field investigation conducted on the tidal bore of the Garonne River (France). The bore was undular and the bore's leading edge was followed by well-defined secondary waves, or whelps. The instantaneous ADV velocity data indicated large and rapid fluctuations of all velocity components during the tidal bore. Large Reynolds shear stresses were observed during and after the tidal bore passage. The investigation characterized some unusual transient turbulence caused by the bore propagation in a large river system, and the results suggested the advection of large-scale eddies in the wake of the bore front. The present study highlighted the need for detailed field measurements with fine temporal resolution, to characterize the highly unsteady rapidly-varied nature of tidal bore flows.
    Journal of Hydraulic Research 04/2015; DOI:10.1080/00221686.2015.1021717
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    ABSTRACT: Internal erosion processes due to piping in an earthen levee built in a laboratory flume are reported in this paper. Different sand, silt and clay mixtures are used for constructing the levee. An image processing technique using an edge-detection algorithm is successfully applied to track the erosion process from the recordings of both side and bottom views. The change in the depth of erosion during the piping phenomenon for different soil composition is studied. The results show that small changes in clay content in the soil mixtures significantly affect the erosion rate. The average depth is approximately equal to the average bottom width of erosion in the piping zone. An exponential equation to estimate the depth of erosion as a function of time and the coefficient of soil erodibility is presented. Results for the critical shear stress and the coefficient of soil erodibility agree well with those obtained from the hole erosion test but not with those obtained from the jet erosion test.
    Journal of Hydraulic Research 04/2015; DOI:10.1080/00221686.2015.1026951
  • Journal of Hydraulic Research 04/2015; 53(2):1-2. DOI:10.1080/00221686.2015.1021718
  • Journal of Hydraulic Research 04/2015; 53(2):1-4. DOI:10.1080/00221686.2015.1021716
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    ABSTRACT: This paper presents a depth-integrated, non-hydrostatic model for coastal water waves. The shock-capturing ability of this model is its most attractive aspect and is essential for computation of energetic breaking waves and wet–dry fronts. The model is solved in a fraction step manner, where the total pressure is decomposed into hydrostatic and non-hydrostatic parts. The hydrostatic pressure component is integrated explicitly in the framework of the finite volume method, whereas most of the existing models use the finite difference method. The fluxes across the cell faces are computed in a Godunov-based manner through an efficient multi-stage scheme. The flow variables are reconstructed at each cell face to obtain second-order spatial accuracy. Wave breaking is treated as a shock by locally switching off the non-hydrostatic pressure in the wave front. A moving shoreline boundary is also incorporated. The robustness and accuracy of the developed model are demonstrated through numerical tests.
    Journal of Hydraulic Research 04/2015; 53(1):119-133. DOI:10.1080/00221686.2014.948503
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    ABSTRACT: An experimentally study of water level changes at open channel junctions with angles of 30° and 60° for different flow conditions is presented. The experimental results were used to assess the equal water level assumption commonly adopted in confluence studies. The maximum value of the water depth at the confluence was assessed through comparison with the critical depth in the downstream channel. Additionally, the results were used to validate the generalization of a classical model for estimating the water depth in confluences with subcritical flows downstream from the junction, even in cases where one or both upstream channel flows were supercritical. The maximum average deviations between the model predictions and measurements were approximately 6%.
    Journal of Hydraulic Research 03/2015; DOI:10.1080/00221686.2015.1013513
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    ABSTRACT: The present study investigates the flow characteristics within the recirculation region of three-dimensional offset jets using a particle image velocimetry technique. Measurements were performed for four nozzle offset height ratios of 0, 2, 4 and 8. The discharged jet entrained the ambient fluid as depicted by streamlines superimposed on the mean velocity contours. Analysis of the flow field showed that the maximum streamwise mean velocity decay rate increased with increasing offset height ratio. Wall-normal spread rates of 0.066 and 0.016 were obtained for jets with offset height ratios of 0 and 2, respectively, and lateral spread rates of 0.116, 0.114 and 0.096 for jets with offset height ratios of 0, 2 and 4, respectively. The reattachment lengths of the jets increased with increasing offset height ratio. Profiles of the mean velocities, Reynolds stresses and some of the budget terms (specifically, production, diffusion and convective terms) of the turbulent kinetic energy have been investigated. It was observed that increasing the offset height ratio influenced the distribution of these quantities within the recirculation region. A two-point velocity correlation analysis was performed to analyse the flow structures within the recirculation region. The two-point correlation revealed some large-scale structures which were observed to increase in size as the offset height ratio increased. The two-point correlation analysis also revealed that the estimated integral length scales within the recirculation region of the flow increased with increasing offset height ratio.
    Journal of Hydraulic Research 03/2015; 53(2). DOI:10.1080/00221686.2014.950612
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    ABSTRACT: Hydraulic jumps, which frequently occur in hydraulic structures, have been extensively studied over the last century. However, only a few studies have evaluated hydraulic jumps in flows over rough beds and there are no studies that consider the air entrainment effect on conjugate depths. The current paper reports the results of an experimental investigation of hydraulic jump properties in flows over adverse-sloped rough beds, including the effect of air entrainment. Furthermore, a semi-theoretical predictive relationship is proposed to estimate jump characteristics for a wide range of hydraulic and geometric conditions covering both rough and smooth beds.
    Journal of Hydraulic Research 03/2015; 53(2). DOI:10.1080/00221686.2015.1017778
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    ABSTRACT: A physically enhanced model is proposed for roll waves based on the shallow water equations and k− turbulence closure along with a modification component. It is tested against measured data on periodic permanent roll waves, and the impact of turbulence is demonstrated to be essential. It is revealed that a regular inlet perturbation may lead to periodic permanent or natural roll waves, when its period is shorter or longer than a critical value inherent to a specified normal flow. While a larger amplitude or shorter period of a regular inlet perturbation is conducive to the formation of periodic permanent roll waves, their period remains the same as that of the perturbation, while their amplitude increases with the perturbation period and is independent of the perturbation amplitude. An irregular inlet perturbation favours the formation of natural roll waves, so does a larger amplitude of the perturbation.
    Journal of Hydraulic Research 03/2015; 53(2). DOI:10.1080/00221686.2014.950350
  • Journal of Hydraulic Research 03/2015; 53(2). DOI:10.1080/00221686.2015.1012655