Searched for: faculty%3A%22Civil%255C%252BEngineering%255C%252Band%255C%252BGeosciences%22
(1 - 20 of 40)

Pages

List view
Grid view
document
Schiereck, G.J. (author), Booij, N. (author)
There is an increasing awareness of the role of mangrove forests in coastal ecosystems and coastal protection. At the transition between ocean and land, they have to absorb the energy that comes from the motion of the water. Little quantitative in formation is available, however, on wave transmission in these forests. In this paper the...
conference paper 1995
document
Hoan, N.T. (author), Booij, R. (author), Hofland, B. (author), Stive, M.J.F. (author), Verhagen, H.J. (author)
The current research is aimed at finding a dimensionless stability parameter for non-uniform flow in which the effect of turbulence is incorporated. To this end, experiments were carried out in which both the bed response (quantified by a dimensionless entrainment rate) and the flow field (velocity and turbulence intensity distributions) are...
conference paper 2007
document
Hoffmans, G.J.C.M. (author), Booij, R. (author)
Excessive local scour can progressively undermine the foundation of a structure. Because complete protection against scour is too expensive generally, the maximum scour-depth and the upstream slope of the scour hole have to be predicted to minimize the risk of failure. In 1961 a systematical research 'tY'ith respect to scour holes started in the...
conference paper 1993
document
Hoan, N.T. (author), Booij, R. (author), Hofland, B. (author), Stive, M.J.F. (author), Verhagen, H.J. (author)
The current research is aimed at evaluating the applicability of a numerical flow model to predict bed damage. First, an experimental study was carried out to get more inside into the relation between flow forces acting on a bed and the bed response (damage). The experiments were then used as the basis for the evaluation. Second, the flow was...
conference paper 2008
document
Hoan, N.T. (author), Booij, R. (author), Hofland, B. (author), Stive, M.J.F. (author), Verhagen, H.J. (author)
The current research is aimed at finding a proper relation between flow forces acting on the bed and the bed response. To this end, experiments were carried out in which both the bed response (quantified by a dimensionless entrainment rate) and the flow field (velocity and turbulence intensity distributions) are measured. The three available...
conference paper 2007
document
Hoan, N.T. (author), Booij, R. (author), Stive, M.J.F. (author), Verhagen, H.J. (author)
The velocity and turbulence distributions of decelerating open-channel flow in a gradual expansion were measured using LDV equipment. The results show that the logarithmic law can describe the mean velocity in the bottom region well while the Coles’ law can be applied to the outer region. The shear velocity can be determined both by the...
conference paper 2007
document
Booij, N. (author)
A mathematical model for the combined refraction-diffraction of linear periodic gravity waves on water is developed, in which the influence of inhomogeneities of depth and current is taken into account. The model is used to compute partial reflection of waves a gully or an undersea slope, with influence of a current. The model is also applied to...
doctoral thesis 1981
document
Hoan, N.T. (author), Stive, M.J.F. (author), Booij, R. (author), Hofland, B. (author), Verhagen, H.J. (author)
This paper presents the results of an experimental study on stone stability under nonuniform turbulent flow, in particular expanding flow. Detailed measurements of both flow and turbulence and the bed stability are described. Than various manners of quantifying the hydraulic loads exerted on the stones on a bed are extensively reviewed and...
journal article 2011
document
Van Esse, W.R. (author), Perrin, C. (author), Booij, M.J. (author), Augustijn, D.C.M. (author), Fenicia, F. (author), Lobligeois, F. (author)
In hydrological studies models with a fixed structure are commonly used. For various reasons, these models do not always perform well. As an alternative, a flexible modelling approach could be followed, where the identification of the model structure is part of the model set-up procedure. In this study, the performance of twelve different...
journal article 2013
document
Van Esse, W.R. (author), Perrin, C. (author), Booij, M.J. (author), Augustijn, D.C.M. (author), Fenicia, F. (author), Kavetski, D. (author), Lobligeois, F. (author)
Models with a fixed structure are widely used in hydrological studies and operational applications. For various reasons, these models do not always perform well. As an alternative, flexible modelling approaches allow the identification and refinement of the model structure as part of the modelling process. In this study, twelve different...
journal article 2013
document
Battjes, J.A. (author), Booij, N. (author), Hooimeijer, M.A. (author)
lecture notes 1999
document
Booij, R. (author)
Stochastische beschrijving van turbulentie, basisvergelijkingen, energie, turbulente afschuifstoming, turbulente stromingen in de practijk, modellering van de turbulentie, turbulente diffusie.
lecture notes 1986
document
Booij, R. (author)
Stochastische beschrijving van de turbulentie, basisvergelijkingen, energie, turbulente afschuifstroming, turbulente stromingen in de praktijk, modellering van de turbulentie, turbulente diffusie.
lecture notes 1992
document
Stelling, G.S. (author), Booij, N. (author)
Lecture notes CT wa4340. Derivation of equations using balance principles; numerical treatment of ordinary differential equations; time dependent partial differential equations; the strucure of a computer model:DUFLO; usage of numerical models.
lecture notes 1999
document
Pennekamp, J.G.S. (author), Booij, R. (author)
For the computation of depth averaged flows in tidal channels and rivers a recently developed fully implicit finite difference method of the ADI-type proved vastly superior to the partly explicit variants, commonly used. The fully implicit variant allowed a relatively large time step in combination with arealistic lateral diffusion coefficient....
report 1984
document
Booij, R. (author), Pennekamp, J.G.C. (author)
Prediction of bottom changes in rivers and tidal channels require a thorough knowledge of the secondary flow, as this flow gives rise to bottom slopes transverse to the main flow direction. In the model used in this research, the computation of the secondary flow field is based upon an, independently computed, depth averaged main flow field. In...
report 1984
document
Herbers, T.H.C. (author), Booij, N. (author), Holthuijsen, L.H. (author)
Development of a two-dimensional model to hindcast spectral wave parameters in an estuary with tidal flats on the basis of bottom topography, current- and wind data. HISWA is a directionally decoupled parametric wave hindcast model containing bottom- and current refraction, diffraction, wave growth and dissipation. The design for this hindcast...
report 1984
document
Booij, R. (author)
Dit rapport is een verslag van een experimenteel onderzoek betreffende de waterbeweging in havens aan een rivier. Het onderzoek is uitgevoerd in de periode van mei t/m oktober 1986 in een hiertoe ontworpen goot in het Laboratorium voor Vloeistofmechanica van de Faculteit der Civiele Techniek van de Technische Universiteit Delft. Het onderzoek is...
report 1986
document
Booij, R. (author)
Literatuuroverzicht.
report 1987
document
Holthuijsen, L.H. (author), Booij, N. (author)
Two scientists from the National Institute of Oceanography of India have been trained to use the storm surge model DUCHESS and the wave model DOLPHIN. The results are published separately in two reports. This is the first of them.
report 1985
Searched for: faculty%3A%22Civil%255C%252BEngineering%255C%252Band%255C%252BGeosciences%22
(1 - 20 of 40)

Pages

List view
Grid view