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Bergsma, E.W.J. (author), Bogaard, T. (author)The general flow pattern of an open channel flow, downstream of a width restriction by two artificial dams, is analysed. A physical Froude-scaled model, under hydraulic rough conditions, with a significant large Reynolds number is used to ensure turbulent flow. Upstream of the dams the flow is uniform in transverse direction, in between and...student report 2011
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Wang, X.K. (author)Experiments to measure forces on objects in open channel flow behind a bacward facing stepreport 1988
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Bijvelds, M.D.J.P. (author)In this report the water flow in harbours, that are situated on a river, are considered. Due to the flow velocity difference between the river and the harbour, a turbulent mixing layer develops at the harbour entrance. The shallowness of the water induces the coexistance of two disparate turbulent length scales in these regions. Besides the ...report 1997
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Hoffmans, G.J.C.M. (author)The general purpose of this research project is to model mathematically the scour-hole downstream of a structure (2-D). The model has to simulate the development of the scour as a function of time. Basically two models are necessary namely a flow model and a morphological model. The latter has to describe the bed- and suspended load and the...report 1988
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- Uittenbogaard, R.E. (author), Imberger, J. (author) report 1993
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Bernard, R.S. (author), Schneider, M.L. (author)Without some correction for the interaction between lateral curvature and vertically nonuniform velocity, depth-averaged numerical models cannot predict the gradual migration of high velocity toward the outside of channel bends. Conventional depth-averaging does not account for the curvature-induced secondary flow that gives rise to the...report 1992
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Nezu, I. (author)Ph.D. thesisreport 1977
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Noback, R. (author)In this report it is assumed that atmospheric turbulence appears in patches and that within the patches the turbulence can be described.as a modulated Gaussian process. The patch lengths have a certain probability density function. Load exceedance curves and design loads for various aircraft models for this turbulence model are compared with...report 1978
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Rodi, W. (author), Bonnin, J.C. (author), Buchal, T. (author)This document contains the calculation results for 5 test cases and the description of calculation methods submitted to the ERCOFTAC Workshop on Data Bases and Testing of Calculation Methods for Turbulent Flows held in Karlsruhe from April 3 to 7, 1995. The workshop was an outcome and marked the end of the research project "Data Validation and...report 1995
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Hinze, J.O. (author), Leijdens, H. (author), Van den Brug, J.B. (author), Kleiweg, D. (author)A l'aide de la méthode du ruban vibrant de Schubauer et Klebanoff. on a étudié expérimentalement l'évolution tridimensionnelle d'une perturbation sinusoïdale locale introduite dans une couche limite laminaire. Les distributions de la vitesse moyenne et de l'intensité de la composante axiale de la turbulence, de même que le spectre d'énergie de...report 1964
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- Skare, P.E. (author) report 1995
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- Kester, J.A.T.M. van (author), Uittenbogaard, R.E. (author), Dingemans, M.W. (author) report 1996
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- Abraham, G. (author) report 1986
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Okayasu, A. (author)The characteristic motion of water under breaking waves and the turbulence structure in the surf zone were investigated through detailed two-dimensional velocity measurements in a wave flume. Significant difference was found between the breaking processes in the outer and inner regions of the surf zone. The velocity field in each region consists...report 1989
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- Flokstra, C. (author) report 1988
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- Uittenbogaard, R.E. (author) report 1986
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Atkins, R. (author)The use of a small two-component electromagnetic current meter to record turbulent velocities in a laboratory flume is described. The results from these experiments are compared with results obtained previously using different measuring techniques.report 1980
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Hoffmans, G.J.C.M. (author)In the Netherlands hydraulic engineering structures are not only designed, but are also managed and maintained (M&M). In the nineteen-nineties in the United States during periods of high water scores of bridges collapsed, because American law forbids the use of bed protection around bridge piers and moreover, no maintenance plans were available....report 2006
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Lumley, J.L. (author), Khajeh-Nouri, B. (author)A rational closure technique is presented for the first and second moment-equations in a stratified, contaminated turbulent flow, Following the application of high Reynolds/Peclet number approximations, remaining third moments are expanded about the isotropic, homogeneous state. The stratified, uncontaminated case reduces to seventeen equations...report 1973
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Noback, R. (author)In this report a method is described to calculate the load exceedance curve for a linear system having a finite, modulated Gaussian process as input. The derivation is based on the use of ensemble averages, defined as the expected values at a certain point of time. The equations can be used for any airplane-transfer function for which the Power...report 1976