1st Edition

Flow and Sediment Transport in Compound Channels The Experience of Japanese and UK Research

Edited By S. Ikeda, I.K. McEwan Copyright 2009
    348 Pages
    by CRC Press

    342 Pages
    by CRC Press

    This monograph provides a comprehensive state-of-the-art description of the work carried out in the UK and Japan on "Flow and Sediment Transport in Compound Channels". It therefore describes research which has been conducted, primarily over the last two decades, and which has yielded a fairly detailed picture of the important behaviours of compound channels and produced a number of engineering prediction methods which ought to be widely adopted in practice. The text will inevitably highlight areas where our knowledge is sparse and it will spur others on in the task of filling in such gaps.
    The concept of bi-national groups of researchers meeting together intermittently over  period of some years, though not new, has drawn both inspiration and experience and the interaction has produced tangible outcomes in the form of this useful publication.

    1. Introduction
    I.K. McEwan and S. Ikeda
    1.1 Introduction
    1.2 Background to the Text

    2. Flow Structure
    D.W. Knight, S. Aya, S. Ikeda, I. Nezu and K. Shiono
    2.1 Introduction
    2.2 Straight Compound Channels
    2.3 Curvilinear Compound Channels
    2.4 Meandering Compound Channels
    2.5 Effect of Flow Structure on Resistance
    2.6 Effects of Flow Structure on Conveyance Capacity
    2.7 Concluding Remarks

    3. Sediment Processes
    E.M. Valentine, S. Ikeda, D.W. Knight, I.K. McEwan, W.R.C. Myers, G. Pender, T. Tsujimoto, B.B. Willetss and P.R. Wormleaton
    3.1 Introduction
    3.2 Straight Channels with Fixed Planforms
    3.3 Meandering Channels with Fixed Planforms
    3.4 Free Planform Channels
    3.5 Floodplain Processes
    3.6 Conluding Remarks

    4. Computer Simulation
    Y. Kawahara, S. Fukuoka, S. Ikeda, G. Pender and Y. Shimizu
    4.1 Introduction
    4.2 Flow Modelling
    4.3 Turbulence Modelling
    4.4 Example Applications: One Dimensional Modelling
    4.5 Example Applications: Two Dimensional Modelling
    4.6 Example Applications: Three Dimensional Modelling
    4.7 Concluding Remarks

    5. Design Considerations
    S. Fukuoka, A. Watanabe and P.R. Wormleaton
    5.1 Stage-Discharge Relationship and Discharge Storage
    5.2 Flood Flows and Bed Variation in Meandering Channels
    5.3 Effects of Sediment Supply on Bed topography
    5.4 Bank Erosion in Compound Meandering Rivers
    5.5 Effects of Main Channel Alignment on Local Scouring Depth Around Piers
    5.6 Concluding Remarks

    6. Conclusions and Recommendations
    S. Ikeda and I.K. McEwan
    6.1 Concluding Remarks
    6.2 Future Work



    S. Ikeda

    Flood modelling is challenging to the hydraulic engineering community: the human, social and environmental impact of flooding rivers is considerable; while the flow complexity and related uncertainties makes it hard to model accurately. Significant progress has been made on this complex topic during the last two decades, with major contributions by research teams from Japan and UK. The present monograph on "Flow and Sediment Transport in Compound Channels" offers a state-of-the-art review based on this experience. The authors deserve acknowledgement, as their work will help new researchers approaching this fascinating problem, but also facilitate improved engineering approaches to inundations.

    Dr. D. Bousmar
    Coordinator of IAHR Working Group on Compound Channels