Morphological Changes due to River Bank Protection

When bank protection works are constructed along an eroding outer bank, it is often observed that the bed along the outer bank becomes substantially deeper, sometimes causing the failure of the bank protection works themselves. Despite our awareness of this deepening phenomenon, its causes and quantitative estimation is still a matter of...

Assessment of the effect of the reclamation of acid sulphate soil for agricultural development in Vietnam

Vietnam is an agricultural country where rice is the main crop cultivated in the Red river delta in the North and in the Mekong delta in the South. Both deltas refer to lowland. However, the degree of development is clearly different between the two deltas. In the Red river delta, the dike system as well as the canal networks have been...

DUFLOW manual

Manual for the program DUFLOW, a micro-computer package for the simulation of one-dimensional unsteady flow and water quality in open channel systems. Duflow is a one-dimensional network programme. The model can be used for irrigation and drainage networks, for tidal flow in estuaries, and may include water quality parameters.

Influence of offshore breakwaters on coastal sediment transport rate and coastline morphology

Offshore breakwaters have been used in many coastal areas for coastal protection with greater or lesser success. However to date these have not been used along the Dutch coast for this purpose. This is probably due to the absence of accurate design tools for their functional design, coupled with the uncertainty of whether this method of coastal...

The reliability of coastal structures in Vietnam in relation to the reliability of wave and water level data

In designing marine and coastal structures there always exists a considerable uncertainty, especially regarding the reliability of the data to be used. This is primarily due to the stochastic nature of sea waves - one of the most complex, volatile, pertinacious and uncomprehensible of nature's forces. Indeed, even if using all the available...

Maximum amplitude of river meanders

The prediction of planform changes is important for the site selection of structure like bridges or intakes. In the design of bank protection works it is indispensable to know future planform developments for the safety of structures and lands. The meander development process consists of translation and expansion of the bends due to bank erosion...

Compendium of Hydraulic Structures

These lecture notes are an attempt to compile various existing matierial on hydraulic structures into a kind of handbook that servers two purposes: (1) to acquint the participants of the Hydraulic Engineering courses with the English terminology in the field of hydraulic structures; (2) to present an overview of the field of hydraulic structures...

ECDUFLOW: Evaluation Check DUFLOW: Research concerning PC-program ECDUFLOW

Using the micro-computer package DUFLOW for the simu1ation of onedimensiona1 unsteady flow in channe1 systems (Ref. [1]) it is very important to check the resu1ts of the very first ca1cu1ation for a new cana1 system. The first MODEL of a new network system wi11 contain one or more mistakes concerning the cross-sections, the storage area or the...

DUFLOW Simulations 1: Tidal Propagation in Networks

To illustrate the operational use of the micro-computer package DUFLOW for the simulation of one-dimensional unsteady flow in channel systems the tidal propagation in an irrigation system (IRRSYS) is considered. The propagation of periodical shallow water waves in a network system (tidal waves in river systems, estuaries, etc. and also harbor...

A comparative Study and Application of Revetment Design Methods

The study embodies a critical assessment and evaluation of different revetment types as solution to bank problems. The efficacy and usefulness of these revetment types and the associated empirical design methods (incorporatinghydraulic boundary conditions and load parameters) were checked with application to a particular case study in the delta...

A coastal Behaviour model

A computer model for wave analysis, sediment transport computation and morphological process prediction along a coast has been developed as a master of science thesis. The very important factor in morphological processes, the wave propagation, has been analyzed using a fairly realistic mathematical model, viz.: ENDEC model, which considers...

Self-weight consolidation on impervious bases

This paper presents the study on the self-weight consolidation, which is referred to the consolidation problem of cohesive deposits in reservoirs and based on Gibson's theory of non-linear finite-strain consolidation. The analytical solution of the linearized equation is carried out. The solution shows that the consolidation is dominated by the...

A mathematical modelling study for upgrading work of tidal irrigation/drainage system om the Barambai-Seluang-Belawang-Muhur unit, south Kalimantan, Indonesia

This report intends to contribute to the upgrading of the hydraulic infrastructive in existing lowland schemes, where water quality (acidity) problems occur. A summary of the contents of this report is given below: Chapter II presents an overview of the already implemented lowland schemes in Indonesia and describes some alternatives for...

Lecture notes on sediment transport 1

lecture notes on sediment transport by currents, initiation of motion, fall velocity, properties of the material, bed load, suspended load, total load, stable channels, river bed variations, scour, measuring techniques, sediment transport in pipes.

Scale models in hydraulic engineering

principles of modelling, aids to experimental research, reproduction of hydraulic phenomena, design of scale models (rigid bed models, mobile bed models, coastal and estuarine problems, hydraulic structures).

Lecture notes on local scour

Lecture note for the international course.