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van Veen, J. (author)Summary of research in the British Channel on bedforms with the aim to show if there is an interaction with local sediment transport overthere and the sand balance of the Dutch coast. Focus is on echosounding and observation techniques. Theoretical background of the formation of ripples and waves on seabed and riverbed. Comparison of dunes on...report 1935
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Van Veen, J. (author)The Straits ofDover are in certain ways to be considered as the root ofthe Flemish-Dutch coast as far as Texel and as the place where the most influential part of the tidal phenomena along this coast originates. Some uncertainty existed about the influence of a supposed enlargement of these Straits which was expressed in the following two...report 1936
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van Veen, J. (author)Summary of research in the British Channel on bedforms with the aim to show if there is an interaction with local sediment transport overthere and the sand balance of the Dutch coast. Focus is on echosounding and observation techniques.report 1937
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Van Veen, J. (author)The present paper, Eb- en vloedschaarsystemen in de Nederlandse getijwateren (Ebb- and floodchannel systems in the Dutch tidal waters), which was published in 1950, should be considered as Van Veens most important publication since his thesis. It summarizes the results of 20 years of intensive study of estuarine and tidal-basin morphodynamics...report 1949
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Van Veen, J. (author)The present paper, "Eb- en vloedschaarsystemen in de Nederlandse getijwateren" (Ebb- and floodchannel systems in the Dutch tidal waters), which was published in 1950, should be considered as Van Veen's most important publication since his thesis. It summarizes the results of 20 years of intensive study of estuarine and tidal-basin morphodynamics...report 1950
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Bretting, A.E. (author)The form and size of a channel in cohesionless material stable against erosion for a definite discharge are studied. The angle of internal friction and the limiting tractive force 'tmax are taken as known. Distribution of shearing stresses is assumed to be such that they are proportional to the distance between bottom and water surface, measured...report 1958
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Yen, B-C. (author)The flow in a meandering channel is complicated by its curvi-linear characteristics. Consequently, spiral motion and superelevation develop, and the velocity and boundary-shear distributions are modified. Through an approximate theoretical solution and experiments in a fixed-bed model of constant radius, central angle, and uniform cross section,...report 1965
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Herrmann, F.A. (author)The paper describes a series of tests made in the Columbia River Estuary model at the U. S. Army Engineer Waterways Experiment Station concerning enlargement of the navigation channel at Mi ller Sands Bar. Tests were conducted to determine the effects of enlarging the channel and to determine the effectiveness of various combinations of proposed...report 1965
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Squarer, D. (author)The reliability of predictors for friction factors and rates of sediment transport in alluvial channels is open to question when they are applied to sinuous channels. Bed-form geometry in a curved channel and a straight flume which are subject to the same nominal flow conditions is investigated by statistical analysis of records of streamed...report 1968
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Malsch, D. (author), Gleichmann, N. (author), Kielpinski, M. (author), Mayer, G. (author), Henkel, T. (author), Mueller, D. (author), Van Steijn, V. (author), Kleijn, C. (author), Kreutzer, M.T. (author)We describe the formation of water in oil droplets, which are commonly used in lab-on-a-chip systems for sample generation and dosing, at microfluidic Tshaped nozzles from elastic feed lines. A narrow nozzle forms a barrier for a liquid–liquid interface, such that pressure can build up behind the nozzle up to a critical pressure. Above this...journal article
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Schoemaker, H.J. (author)B1: Grondvergelijkingen van de hydrodynamica (1957) B2: Met de tijd veranderlijke stromen (1958) B3: Waterslag¹ (1959) B4: Waterslag, samendrukbare vloeistof in slappe buis met variërende doorsnede (1958) B5: Geleidelijk veranderde beweging in kanalen volgens Boussinesq (1968) B6: Geleidelijk veranderlijke beweging met zijdelingse aan- en afvoer...report 1971
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De Vriend, H.J. (author)The axisymmetrical, viscous flow in curved channels is considered in the case where the hydraulic radius of the cross-section is small with respect to the average radius of curvature of the bend. First Ananyan's theory on this subject is reconsidered, using a regular perturbation method. The results are applied to a specific channel with a...report 1972
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Anderson, A.G. (author)The objective of NCHRP Project 15-2 has been to establish criteria and develop procedures for the design of armored channels. The first phase of the project resulted in NCHRP Report 108, "Tentative Design Procedure for Riprap-Lined Channels" (1), which describes procedures for designing such channels and proportioning the riprap so as to...report 1973
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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
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Gates, E.T. (author), Herbich, J.B. (author)Presently deep-draft navigation channel analysis, design and review is based on empirically derived ratios of the design vessel's dimensions. Because of radical changes in vessel operation purposes and characteristics, these ratios can no longer be safely or economically applied. The mathematical model and related theory described in this...report 1977
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Nezu, I. (author)Ph.D. thesisreport 1977
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van der Vooren, J. (author), Sanderse, A. (author)A fully-conservative- finite difference algorithm is described to calculate the incompressible flow through a straight channel of varying rectangular cross section. Both the width and the height of the channel may vary independently. The algorithm has been used successfully in the design of the German-Dutch low speed wind tionel (DNW).report 1977
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De Vriend, H.J. (author)As an intermediate step between earlier investigations on fully developed laminar flow in curved channels of shallow rectancular wet cross-section and the mathematical modeling of turbulent flow in river bends, a mathematical model of developing laminar flow in such channels is investigated. The most important assumptions made in addition to...report 1978
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Massie, W.W. (author)Lecture notes: beach morphology, sediment transport, longshore transport, beach erosion, access channels, ship maneuvering.lecture notes 1978
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De Vriend, H.J. (author)After the study of fully developed and developing steady laminar flow in curved channels of shallow rectangular wet cross-section (see earlier reports in this series), steady turbulent flow in such channels is investigated as a next step towards a mathematical model of the flow in shallow river bends. A mathematical model is developed for this...report 1979