Searched for: author%3A%22Hofland%2C+B.%22
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document
Hofland, B. (author)
Foto's van de schade in 1953 bij Halsteren, de noodmaatregelen en het herstel daarna. Beschrijving en tekeningen van de situatie uit het Verslag van de Stormvloed.
report 2016
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Chen, X. (author), Hofland, B. (author), Altomare, C. (author), Uijttewaal, J.S.W. (author)
In this paper the impact process and mechanism of overtopping flow on a vertical wall on a dike crest are investigated by means of a series of physical model tests. A double-peaked force was recognized in a time series of an overtoping flow. Four stages were summarized for the whole overtopping flow impact process. An empirical relationship...
conference paper 2014
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Streicher, M. (author), Hofland, B. (author), Lindenbergh, R.C. (author)
Currently a new wave flume for hydraulic experiments near to prototype scale is under construction at Deltares. In the flume, modern measurement equipment will be installed. One of the potential sensor techniques is Terrestrial Laser Scanner (TLS) based range measurements of water waves. TLS range measurements are a very fast and accurate method...
conference paper 2013
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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
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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
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Hofland, B. (author), Klein Breteler, M. (author)
Ingevolge de Wet op de Waterkering dienen steenzetlingen op waterkeringen vijfjaarlijks getoetst te wordeen. In de praklijk kan aan veel sleenzettingen geen definitief toelsoordeel toegekend worden wegens een gebrek aan wetenschappelijke kennis. In 2003 is daarom door de Dienst Weg- en Waterbouwkunde van Rijkswaterstaat het Onderzoeksprogramma...
report 2007
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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
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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
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Hofland, B. (author)
Layers of stone or rock are often applied around hydraulic structures to protect the sand bed from scouring. Determining the size of the rocks is complicated by the fact that the flow over a bed protection usually is non-uniform. This thesis describes two experimental series in which the stability of a single stone under non-uniform flows is...
doctoral thesis 2005
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Hofland, B. (author), Klein Breteler, M. (author)
In deze studie wordt geevalueerd hoe goed het programma ZSTEEN de stijghoogtes onder een steenzetting, die wordt belast met golfklappen, berekent. Verschillende berekeningen zijn uitgevoerd van de stijghoogtes onder een relatief open toplaag voor reeds gedane proeven in de Deltagoot. Voor 9 extreme golfklappen worden de berekende stijghoogtes...
report 2005
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Hofland, B. (author), Klein Breteler, M. (author)
report 2005
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Hofland, B. (author)
Bevat een veiligheidsvoorschrift voor de PIV (particle-image velocimetry) goot. Het rapport is vooral gericht op het gebruik van de krachtige Nd: YAG laser (veiligheidsklasse 4) die gebruikt wordt voor de PIV techniek.
report 2002
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Hofland, B. (author)
report 2002
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Hofland, B. (author)
The second chapter describes the general methodology of the research. It presents the key questions about the entrainment of stones from granular filters that are as yet unanswered. It also describes the aspects that are being regarded in the analysis in this report. In chapter 3 the measuring set-up is described. The following two chapters...
report 2001
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Hofland, B. (author)
This report is structured as follows: In chapter 2 the importance of wall pressures with respect to the present research is described. The literature on wall pressures that was used, and some general features of wall pressure fluctuations are subsequently described in chapter 3. Chapter 4 deals with the pressure sensors. It begins with a brief...
report 2001
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Hofland, B. (author)
In order to understand the processes involved in damaging a granular filter, the behaviour of the separate particles it is made of must be known. The hydrodynamic forces on the particles are very important for understanding this behaviour. These forces have been examined by many researchers. Chapter 2 deals with that aspect. The characteristics...
report 2000
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Hofland, B. (author), Van Leeuwen, C.W. (author)
Siltation is a serious problem for harbours situated on tidal rivers and estuaries. Maintenance dredging is necessary on a regular basis to guarantee safe navigation and is often a large cost factor. A means to prevent sediment from entering a harbour is the Current Deflecting Wall (CDW), which passively alters the water exchange at the harbour...
master thesis 1999
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