Correction to: Fluvial hydrodynamics: hydrodynamic and sediment transport phenomena by Subhasish Dey and Fluvial hydrodynamics—solutions manual by Subhasish Dey and Sk Zeeshan Ali

Review of Fluvial Hydrodynamics: Hydrodynamic and Sediment Transport Phenomena by Subhasish DeyGeoPlanet: Earth and Planetary Sciences Book Series, Springer, Berlin, Heidelberg; 2014; ISBN 978-3-642-19061-2, ISBN 978-3-642-19062-9 (eBook); DOI 10.1007/978-3-642-19062-9; 687 pp.; $139/€107.09/£93.50.

Fluvial hydrodynamics: hydrodynamic and sediment transport phenomena by Subhasish Dey and Fluvial hydrodynamics—solutions manual by Subhasish Dey and Sk Zeeshan Ali

Introduction.- Hydrodynamic Principles.- Turbulence in Open Channel Flows.- Sediment Threshold.- Bed-Load Transport.- Suspended-Load Transport.- Total-Load Transport.- Bedforms.- River Processes: Meandering and Braiding.- Scour.- Dimensional Analysis and Similitude.

Fluvial hydrodynamics: hydrodynamic and sediment transport phenomena

Review of <i>Fluvial Hydrodynamics: Hydrodynamic and Sediment Transport Phenomena</i> , 2nd Edition by Subhasish Dey Springer Nature, Switzerland, 2024; ISBN 978-3-031-26037-7 (print); ISBN 978-3-031-26038-4 (e-book); 893 pp.; $249.99 (print); $199.99 (e-book).

Fluvial Hydrodynamics: Hydrodynamic and Sediment Transport Phenomena, Subhasish Dey, GeoPlanet: Earth and Planetary Sciences, Springer-Verlag, Berlin, Germany, 2014, 687 pp., Hardcover, Price £117.00 (US$179.00, €135.19), ISBN 978-3-642-19061-2; eBook, Price £93.50 (US$139.00, €107.09), ISBN 978-3-642-19062-9, doi:10.1007/978-3-642-19062-9.

Book review: Fluvial Hydrodynamics: Hydrodynamic and Sediment Transport Phenomena

Mathematical modelling of morphological changes and hyperconcentrated floods in the Yellow River

Oscillating water tunnels are experimental facilities commonly used in coastal engineering research. They are intended to reproduce near-bed hydrodynamic and sediment transport phenomena at a realistic scale. In an oscillating water tunnel, a piston generates an oscillatory motion that propagates almost instantaneously to the whole tunnel; consequently, flow is uniform along the tunnel, unlike the propagating wave motion in the sea or in a wave flume. This results in subtle differences between the boundary-layer hydrodynamics of an oscillating water tunnel and of a propagating wave, which may have a significant effect in the resulting sediment transport. In this paper, we present a zeroth-order analytical model of the turbulent boundary-layer hydrodynamics in an oscillating water tunnel. By using a time-varying eddy viscosity and by accounting for the constraints arising from the tunnel's geometry, the model predicts the oscillating water tunnel hydrodynamics and yields analytical expressions to compute bed shear stresses for asymmetric and skewed waves, both in the absence or presence of an imposed current. These expressions are applied to successfully quantify bedload sediment transport in oscillating water tunnel experiments.

Rivers are the best sites to observe the natural effects of sediment transport. Phenomenon of sediment transport in the flow was much scrutinized by experts and some sediment transport equations have been developed. But the performance of these equations is still controversial. Gomez and Church (1989) evaluated a number of sediment transport equations were developed for flows with a gravel base and find that none who have a good consistent performance. This paper examined the sediment transport with a case study on Krasak river in Yogyakarta. This paper intended to test the accuracy of the count by using a dimensionless sediment transport equations of Einstein (1950) on sediment transport measurements. Based on the relationship between the flow parameters (Ψ) and the transport parameter (Φ) of this study compared to the graph of Einstein (1950), it appeared that some of the research data plot was fairly spread. In the plot of data with σ = 2.00 to 4.00, the trend of the data deviated far enough above the curve of Einstein. In the plot of data with σ = 1.35 to 2.00 and σ = 4.00 to 5.00; trends in the data were slightly above the curve of Einstein. While the data with σ = 1.06 to 1.35 trends to follow the curve of Einstein. This last data has a coefficient σ closed to uniform.

Understanding the dynamics of the various components (and the mechanisms involved) in a river system and establishing precise relationships between them are important for an accurate description of the sediment transport phenomenon. Despite the significant progress achieved in the last century with the development of a variety of approaches, there is no generally accepted simple relationship between the components. A preliminary attempt is made herein to address the sediment transport problem from a low-dimensional chaotic dynamical perspective. Such an approach assumes that the seemingly complex behaviour of the sediment transport phenomenon can be the outcome of a simple deterministic system influenced by a few dominant nonlinear interdependent variables sensitive to initial conditions. As a first step towards assessing the validity of such a hypothesis, the dynamical behaviours of three important (and related) components of the sediment transport phenomenon, i.e. water discharge, suspended sediment concentration and bed load, in the Mississippi River basin (at St Louis, Missouri), USA are studied. The correlation dimension method is employed to identify the dynamical behaviour (chaotic or stochastic). The results indicate that the three components exhibit low-dimensional chaotic behaviour. A possible implication of such results could be that the complete sediment transport phenomenon might also exhibit low-dimensional chaotic behaviour. Efforts towards analysing the other components of the sediment transport system and establishing relationships between them are underway.

Sediment transport modelling in combined sewer

Sediment transport modelling in combined sewer

This paper discusses an undergraduate fluid mechanics laboratory session. The lab allows the students to observe various sediment transport phenomena in a hands-on manner. The experiments are performed in a glass-walled, tilting sediment flume. The following sediment transport phenomena are created and observed by the students — bed load, suspended load, bed forms (ripples, dunes, antidunes...), surface waves over various bed forms and local scour at flow obstructions including bridge piers and abutments. Students are able to observe local scour using PVC pipes for bridge piers and dimension lumber for abutment scour. Since the flume is 12.2-m long, a large group of students can spread out along both sides of the flume to observe bed forms and to perform local scour tests.

Chaotic analysis of time series in the sediment transport phenomenon