Searched for:
(1 - 20 of 47)

Pages

document
Klaver, S. (author), Nederhoff, C. M. (author), Giardino, A (author), Tissier, M.F.S. (author), van Dongeren, A. R. (author), van der Spek, A.J.F. (author)
Small island developing states are among the most vulnerable areas to the impact of natural hazards and climate change. Flooding due to storm surges and extreme waves, coastal erosion, and salinization of freshwater lenses are already a serious threat and could lead to irreversible consequences in the coming decades. Reef flat mining is one...
journal article 2019
document
de Vet, P.L.M. (author), van Prooijen, Bram (author), Schrijvershof, R. A. (author), van der Werf, J (author), Ysebaert, T (author), Schrijver, M. C. (author), Wang, Zhengbing (author)
Estuarine intertidal areas are shaped by combined astronomical and meteorological forces. This paper reveals the relative importance of tide, surge, wind, and waves for the flow and sediment transport on large intertidal shoals. Results of an intensive field campaign have been used to validate a numerical model of the Roggenplaat intertidal...
journal article 2018
document
Pearson, S.G. (author), Storlazzi, C.D. (author), van Dongeren, A. R. (author), Tissier, M.F.S. (author), Reniers, A.J.H.M. (author)
Many low-elevation, coral reef-lined, tropical coasts are vulnerable to the effects of climate change, sea level rise, and wave-induced flooding. The considerable morphological diversity of these coasts and the variability of the hydrodynamic forcing that they are exposed to make predicting wave-induced flooding a challenge. A process-based...
journal article 2017
document
Gunyol, O. (author)
The current understanding of the transport phenomena involved in the operation of industrial fermenters is not sufficient. This is reflected by the limitations seen in their design and operation. A better insight in the local processes taking place (hydrodynamics, gas dispersion, mixing, microbial kinetics) is required to be able to make a step...
doctoral thesis 2017
document
Hoonhout, B.M. (author), Luijendijk, A.P. (author), de Vries, S. (author), Roelvink, D. (author)
Expanding knowledge concerning the close entanglement between subtidal and subaerial processes in coastal environments initiated the development of the open-source Windsurf modeling framework that enables us to simulate<br/>multi-fraction sediment transport due to subtidal and subaerial processes simultaneously. The Windsurf framework couples...
conference paper 2017
document
Phan, M.H. (author), Reniers, A.J.H.M. (author), Ye, Q. (author), Stive, M.J.F. (author)
The coastal zone of Mekong delta is suffering under intense pressures from climate change as well as human intervention. Currently, the coastline evolution of Mekong delta is a complex combination of impacts due to (1) relative sea level rise i.e. the sum of eustatic sea level rise, natural and human induced subsidence (2) sediment transport...
conference paper 2017
document
Matias, Ana (author), Carrasco, Ana Rita (author), Loureiro, Carlos (author), Andriolo, Umberto (author), Masselink, Gerd (author), Guerreiro, Martha (author), Pacheco, A (author), McCall, R.T. (author), Ferreira, Óscar (author), Plomaritis, Theocharis A. (author)
Overwash hydrodynamics datasets are mixed in quality and scope, being hard to obtain due to fieldwork experimental difficulties. Aiming to overcome such limitations, this work presents accurate fieldwork data on overwash<br/>hydrodynamics, further exploring it to model overwash on a low-lying barrier island. Fieldwork was performed on Barreta...
conference paper 2017
document
de Wit, F.P. (author), Tissier, M.F.S. (author), Reniers, A.J.H.M. (author)
Coastal systems are influenced by a combination of waves and tides. In certain cases, tide-induced alongshore currents can be of similar order or even larger than wave-induced currents. Until now, however, no detailed wave-resolving modelling studies included tidal currents. This paper presents a method to implement alongshore tidal currents by...
conference paper 2017
document
Tissier, M.F.S. (author), Bonneton, P (author), Ruessink, Gerben (author)
The phenomenon of bore merging is investigated using two high-resolution laboratory experiments including bichromatic and irregular wave conditions. The locations at which waves start merging are identified and the hydrodynamic conditions in the vicinity of the merging points are examined. Bore merging takes place in the inner surf zone for all...
conference paper 2017
document
van der Kolk, N.J. (author), Keuning, J.A. (author), Huijsmans, R.H.M. (author)
A Reynolds-Averaged Navier Stokes computational fluid dynamics (RANS-CFD) package will be one of the primary tools used during the development of a performance prediction program for Wind-Assisted commercial ships. The modelling challenge presented by large separated flow structures in the wake of the sailing ship points to a conscientious...
conference paper 2017
document
van Houwelingen, J. (author), van de Water, W. (author), Kunnen, R.P.J. (author), van Heijst, GJF (author), Clerx, H.J.H. (author)
Understanding the power balance of a swimmer, who needs to overcome power losses to drag and to water set in motion, requires detailed insight into the hydrodynamics of the flow around the swimmer. This will be done from a hydrodynamic point of view with techniques familiar from fluid mechanics. One of our objectives is to develop a system to...
conference paper 2016
document
Gourdin-Bertin, S. (author), Chassagne, C. (author), Bernard, O. (author), Jardat, M. (author)
In electrolyte solutions, an electric potential difference, called the Ionic Vibration Potential (IVP), related to the ionic vibration intensity, is generated by the application of an acoustic wave. Several theories based on a mechanical framework have been proposed over the years to predict the IVP for high ionic strengths, in the case where...
journal article 2015
document
Radermacher, M. (author), Thackeray, Z.H. (author), De Schipper, M.A. (author), Gordon, L. (author), Chrystal, C. (author), Leuci, R. (author), Reniers, A.J.H.M. (author)
Measurements of nearshore currents can be performed using a range of existing measurement techniques. Although every technique has its specific benefits, capturing strong spatial gradients in a flow field with sufficiently high spatial resolution often proves to be difficult due to high costs or practical difficulties associated with these...
conference paper 2015
document
Donchyts, G. (author), Baart, F. (author), Van Dam, A. (author), De Goede, E. (author), Icke, J. (author), Putten, H. (author)
An overview paper, describes motivation and main deliverables of the Next Generation Hydro Software (NGHS) project. Important technological innovations include development of the new computational core Delft3D Flexible Mesh, as well as the open modelling environment Delta Shell.
conference paper 2014
document
Bodde, W.P. (author), Pomeroy, A.W.M. (author), Van Dongeren, A.R. (author), Lowe, R. (author), van Thiel de Vries, J.S.M. (author)
Coral reefs are highly valuable ecosystems, which are under an increasing number of environmental pressures. Sedimentation and sediment transport patterns are among key physical drivers of coral reefs, so it is important to improve our understanding of these poorly studied dynamics on reefs. To this purpose, flume experiments were performed on a...
conference paper 2014
document
Donchyts, G. (author), Baart, F. (author), Van Dam, A. (author), Jagers, B. (author)
The use of natural user interfaces instead of conventional ones has become a reality with the emergence of 3D motion sensing technologies. However, some problems are still unsolved (for example, no haptic or tactile feedback); so this technology requires careful evaluation before the users can benefit from it. We argue, that the best benefits...
conference paper 2014
document
Platzek, F.W. (author), Stelling, G.S. (author), Jankowski, J.A. (author), Pietrzak, J.D. (author)
Three-dimensional hydrodynamic z-layer models, which are used for simulating the flow in rivers, estuaries, and oceans, suffer from an inaccurate and often discontinuous bottom shear stress representation, due to the staircase bottom. We analyze the governing equations and clearly show the cause of the inaccuracies. Based on the analysis, we...
journal article 2014
document
Brändle de Motta, J.C. (author), Breugem, W.P. (author), Gazanion, B. (author), Estivalezes, J.L. (author), Vincent, S. (author), Climent, E. (author)
A general model is presented for short-range hydrodynamic interactions and head-on particle-particle/wall collisions. The model has been embedded in two distinct numerical methods for fully resolved simulation of finite-size particles in a viscous fluid. It accounts for the material properties of the particles and lubrication effects prior to...
journal article 2013
document
Pomeroy, A.W.M. (author), Lowe, R.J. (author), Bowyer, C. (author), Zhang, Z. (author), Falter, J. (author), Van Dongeren, A. (author), Roelvink, D. (author)
conference paper 2013
document
Ooms, G. (author), Pourquie, M.J.B.M. (author), Beerens, J.C. (author)
A numerical study has been made of horizontal core-annular flow: the flow of a high-viscosity liquid core surrounded by a low-viscosity liquid annular layer through a horizontal pipe. Special attention is paid to the question how the buoyancy force on the core, caused by a density difference between the core and the annular layer, is...
journal article 2013
Searched for:
(1 - 20 of 47)

Pages