1st Edition

Environmental Fluid Mechanics Memorial Volume in honour of Prof. Gerhard H. Jirka

Edited By Wolfgang Rodi, Markus Uhlmann Copyright 2012

    This book contains the written versions of invited lectures presented at the Gerhard H. Jirka Memorial Colloquium on Environmental Fluid Mechanics, held June 3-4, 2011, in Karlsruhe, Germany. Professor Jirka was widely known for his outstanding work in Environmental Fluid Mechanics, and 23 eminent world-leading experts in this field contributed to this book in his honour, providing high-quality state-of-the-art scientific information. The contributions cover the following key areas of Environmental Fluid Mechanics: Fluvial Hydraulics, Shallow Flows, Jets and Stratified Flows, Gravity Currents, Mass Transfer and Small-Scale Phenomena, and include experimental, theoretical and numerical studies. In addition, former co-workers of Professor Jirka provide an extensive summary of his scientific achievements in the field.

    Preface

    Gerhard H. Jirka 1944–2010

    1 Mixing and transport processes in environmental fluid systems: Gerhard Jirka’s scientific achievements
    T. Bleninger, H. Herlina, V. Weitbrecht and S. Socolofsky

    PART 1
    Shallow flows

    2 Horizontal mixing in shallow flows
    W.S.J. Uijttewaal

    3 Onset and development of instabilities in shallow shear flows
    M.S. Ghidaoui, M.Y. Lam and J.H. Liang

    4 Shallow flows with bottom topography
    G.J.F. van Heijst, L.P.J. Kamp and R. Theunissen

    5 Characteristic scales and consequences of large-scale horizontal coherent structures in shallow open-channel flows
    A.M. Ferreira da Silva, H. Ahmari and A. Kanani

    6 Waves and currents: Hawking radiation in the hydraulics laboratory?
    G.A. Lawrence, S. Weinfurtner, E.W. Tedford, M.C.J. Penrice and W.G. Unruh

    PART 2
    Fluvial hydraulics

    7 Numerical simulation of turbulent flow and sediment transport processes in arbitrarily complex waterways
    S. Kang, A. Khosronejad and F. Sotiropoulos

    8 Morphodynamic equilibrium of tidal channels
    G. Seminara, M. Bolla Pittaluga and N. Tambroni

    9 Flow structure and sustainability of pools in gravel-bed rivers
    S.E. Parkinson, P. Goodwin and D. Caamaño

    10 Drag forces and flow resistance of flexible riparian vegetation
    A. Dittrich, J. Aberle and T. Schoneboom

    11 Flow-biota interactions in aquatic systems: Scales, mechanisms, and challenges
    V. Nikora, S. Cameron, I. Albayrak, O. Miler, N. Nikora, F. Siniscalchi, M. Stewart and M. O’Hare

    PART 3
    Small-scale phenomena

    12 Interaction of flows and particles at sub-micrometer scales
    D. Chen and H. Huang

    13 Environmental aspects of wastewater hydraulics
    W.H. Hager

    14 Diffusive-type of double diffusion in lakes-a review
    A. Wüest, T. Sommer, M. Schmid and J.R. Carpenter

    PART 4
    Jets and stratified flow

    15 Multiple jet interaction in stagnant shallow water
    A.C.H. Lai and J.H.W. Lee

    16 Evolution of turbulent jets in low-aspect ratio containers
    S.I. Voropayev, C. Nath and H.J.S. Fernando

    17 Modelling internal solitary waves in shallow stratified fluids
    P.A. Davies and M. Carr

    PART 5
    Gravity currents

    18 Optical methods in the laboratory: An application to density currents over bedforms
    J. Ezequiel Martin, T. Sun and M.H. García

    19 Extinction of near-bed turbulence due to self-stratification in turbidity currents: The dependence on shear Reynolds number
    M.I. Cantero, S. Balachandar, A. Cantelli and G. Parker

    20 Revisiting gravity currents and free shear flows
    J. Bühler and M. Princevac

    21 On the effect of drag on the propagation of compositional gravity currents
    G. Constantinescu

    PART 6
    Mass transfer

    22 Gas transfer at water surfaces
    B. Jähne

    23 Mass transfer from bubble swarms
    J.S. Gulliver

    24 Modelling bacteria and trace metal fluxes in estuarine basins
    R.A. Falconer, B. Lin, W.B. Rauen, C.M. Stapleton and D. Kay

    Biography

    W. Rodi is an expert in the field of turbulent flows and on the application of calculation procedures to a wide range of engineering and environmental problems (hydraulics, waste-water treatment, building aerodynamics, vehicle and aircraft aerodynamics, turbomachinery, process engineering). He has published extensively on these topics during the course of his distinguished academic career. His book Turbulence Models and Their Application in Hydraulics appeared earlier in the IAHR Monograph series.

    M. Uhlmann is Professor of numerical modeling in fluid mechanics and head of the Turbulent Flows group within the Institute for Hydromechanics at the Karlsruhe Institute of Technology, Germany. His research and publications centre on dynamics of coherent structures in turbulent flows, multi-phase flows, numerical simulation techniques and high performance computing.