Searched for: +
(1 - 20 of 61)

Pages

document
Frijlink, H.C. (author)
Overview of sediment transport formulas and comparison with measurements in Waal and Rijn river in the Netherlands.
report 1952
document
Rossini, T. (author)
Report on the navigability of the Po river.
report 1953
document
Gorio, O. (author)
Overview of the studies and works in the Po river (Italy) in the years 1919 to 1941. The object of the work is the arrangement of the river Po with "free flowing water"system for the navigation profit and for the hydraulic protection, projectation and execution of the works. Moreover there is described an economic an special system adopted for...
report 1953
document
Frijlink, H.C. (author)
Extensive study or the rivers Niger and Benué in order to describe the hydraulics and morphology with the aim to improve inland navigation in Nigeria. Part I gives a summary of the original NEDECO studies and their results as contained in the Report, without summarising the information obtained from other sources. This is followed by a...
report 1959
document
Prins, A. (author)
Detailed investigation of the hydraulics and morphology of the lower part of the Rio Magdalena and the canal del Dique in Colombia. Detailed description of the used methodology of hydrographic and morphological survey techniques. Background of the river morphology of the region. The investigation has the aim to act as a basis for river training...
report 1973
document
de Vries, M. (author)
Processes on degradation and aggradation of rivers have a speed depending on the characteristics of the rivers. Starting from the basic equations a morphological timescale, characterising these processes, is defined. This morphological time-scale is estimated for various rivers.
report 1975
document
De Vriend, H.J. (author)
Uitgaande van de Reynoldsvergelijkingen met de bijbehorende randvoorwaarden wordt een vereenvoudigd wiskundig model afgeleid voor ondiepe bochtige rivieren. met als voornaamste uitgangspunten: - de vertikale afgeleiden van de snelheden zijn groot t.o.v. de horizontale - de schuifspanningseffekten overheersen de traagheids- (advectieve) effekten....
report 1976
document
De Vries, M. (author)
Rather than reporting on a specific topic of current research in the broad field of sediment transport and river morphology, the writer will give a general contemplation on the state of the art. This will not be a review in the usual sense. The alloted space would then be filled easily with references. References will only be made here if it...
report 1977
document
Verhagen, H.J. (author)
During the dry season shipping between Mongu and Kalabo is impossible, therefore this project was started to improve the situation by dredging. Dredging was started at Mongu harbour, where a new dredger was delivered, assembled and launched. Due to the urgency of the project dredging had to be started before a profound survey concerning the...
report 1978
document
Ribberink, J.S. (author)
In Chapter I a derivation of the equations and an extension of the mathematical model will be carried out. The sediment-mixture is separated in a number of fractions - each with a representative grain size - and the equations describing the sediment-movement are split up for every fraction separately. In order to get some insight in the new...
report 1980
document
Klaassen, G.J. (author), Buysrogge, R.H. (author), Zanten, B.H.J. van (author)
report 1981
document
Olesen, K.W. (author)
The paper presents a linear perturbation analysis of a horizontal two-dimensional mathematical model for the flow and bed topography in straight alluvial rivers with dominant bed-load. A sediment transport model including effects of transverse bed slope, secondary (helical) flow and secondary flow inertia is employed. The stability and the...
report 1983
document
Olesen, K.W. (author)
A two-dimensional horizontal mathematical model of the flow and bed topography in alluvial channel bends is presented. The applicability of the model is restricted to channels of which the width-depth ratio is large, the Froude number is small, bed load is dominant and grain sorting effects are negligible. First order analyses of the...
report 1985
document
De Vries, M. (author)
In river engineering morphological predictions have to be made to study the implications of changes in a river system due to natural causes or human interference. It regards here time-depending processes. Characteristic parameters of the river have to be forecasted both in time and space. The morphological processes, however, are extremely...
report 1985
document
Van Mierlo, M.C.L.M. (author)
From Struiksma et al (1985) it can be concluded that more experimental evidence is needed to achieve a correct formulation. Generally the available data can only be used for an integral check as, for instance, was done by Zimmerman and Kennedy· ( 1978). More useful information could be obtained by carrying out experiments directed at the...
report 1986
document
De Vriend, H.J. (author), Koch, F.G. (author)
I: Flow of water in a curved open channel with a fixed plane bed II: Flow of water in a curved open channel with a fixed uneven bed III: Accuracy of measurements in a curved open channel In this report the flow of water in a curved open channel, which consists of a38 m long straight section followed by a 90° bend with a radius of 50 m (see...
report 1987
document
Shiyang, Gong (author), Zhiyao, Wu (author)
Proceedings of a congerence in Zhenzhou, China, 1990: Gong Shiyan, Wu Zhiyao: Introduction. Bao Zicheng, Zhang Mingde, Wang Rudiu: Strenghtening of dykes by Warping. Cheng Zidao, Liu Yuli: To remedy hidden defects in dykes by probing with pointed steed rods and subsequent grouting. Hu Yisan: River training works on the lower reaches of the...
report 1990
document
Simon, A. (author), Hupp, C.R. (author)
Hundreds of miles of streams in West Tennessee have been channelized or otherwise modified since the tum of century. After all or parts of a stream are straightened, dredged, or cleared, systematic hydrologic, geomorphic, and ecologic processes collectively begin to reduce energy conditions towards the premodified state. One hundred and .five...
report 1992
document
Jonge, J.J. de (author)
report 1994
document
Wang, Z.B. (author), Kaaij, T. van der (author)
report 1994
Searched for: +
(1 - 20 of 61)

Pages