- document
-
Verbeek, Merel C. (author), Talstra, H. (author), Labeur, R.J. (author), Uijttewaal, W.S.J. (author)Tidal stream turbines are becoming an affordable option for harvesting sustainable energy in coastal areas. They can be retrofitted in barrages, providing an integral solution for flood protection and emission-free power generation, within environmental constraints. To optimize the turbine-barrage configuration with respect to these...journal article 2024
- document
-
Magherini, A. (author), Yan Toe, C. (author), Stancanelli, L.M. (author), Wüthrich, D. (author), Uijttewaal, W.S.J. (author)Plastic pollution is a threat for all ecosystems due to its effects on people, animals, and environment (Mai et al., 2020). Rivers are estimated to transport around 0.5 millions tons of plastic per year (Strokal et al., 2023). When plastic enters a river system, it is transported downstream towards the sea but it is also likely to accumulate at...abstract 2024
- document
-
Yildiz, B. (author), Uijttewaal, W.S.J. (author)Compound weirs are used as flow diversion structures by adding additional flow resistance to the anticipated regions at the rivers. Furthermore, they are used for measuring and regulating flow rates accurately over a wide range of flow depths. When they are used for this purpose, the cross sections are generally selected as symmetrical having...conference paper 2023
- document
-
Yildiz, B. (author), Uijttewaal, W.S.J. (author)Compound weirs can be used as flexibly adjustable structures to regulate the flow and the flow distribution over the cross-section. Examples are found in rivers to create additional resistance in one side of the river bifurcations. It is done to distribute the discharge among the branches properly. They are placed at the flood plains and become...conference paper 2023
- document
-
Zou, P. (author), Ruiter, N. (author), Uijttewaal, W.S.J. (author), Chen, X. (author), Peters, D.J. (author), Bricker, J.D. (author)Marine biofouling is a major concern in the operational performance of submerged floating tunnels (SFTs). The objective of this research is to investigate the effects of marine fouling (represented by surface roughness) on the hydrodynamic behavior of SFTs, including the hydrodynamic forces on the SFT subject to current-only, wave-only, and...journal article 2023
- document
-
Zou, P. (author), Ruiter, N. (author), Bricker, J.D. (author), Uijttewaal, W.S.J. (author)The effects of surface roughness as induced by marine fouling on the hydrodynamic forces on a submerged floating tunnel (SFT) are experimentally and numerically investigated in detail at Reynolds numbers Re = 8.125 × 10<sup>3</sup>–5.25 × 10<sup>4</sup>. A sensitivity analysis to different roughness parameters including roughness height,...journal article 2023
- document
-
Wei, P. (author), Uijttewaal, W.S.J. (author), Spanjers, H. (author), van Lier, J.B. (author), de Kreuk, M.K. (author)Gas-mixing is commonly applied in anaerobic digesters, yet the resulting flow and hydraulic mixing are difficult to evaluate because of limited full-scale experimental data and uncertainties in integrating sludge rheological data. This study used computational fluid dynamics (CFD) to assess the impact of treated sludge rheology on flow and...journal article 2023
- document
-
Zou, P. (author), Kim, Taeksang (author), Bricker, J.D. (author), Uijttewaal, W.S.J. (author)The modelling of complex free surface flows is challenging due to the mobility and deformability of the interface and air entrainment characteristics, which are highly affected by turbulence. With the framework of Reynolds averaged Navier–Stokes (RANS) models and the volume of fluid (VOF) method, turbulence quantities at the air–water...journal article 2023
- document
- Yan Toe, C. (author), Uijttewaal, W.S.J. (author), Wüthrich, D. (author) conference paper 2022
- document
- Buffon, P. (author), Uijttewaal, W.S.J. (author), Franca, M.J. (author), Valero Huerta, Daniel (author) conference paper 2022
- document
-
Zou, P. (author), Bricker, J.D. (author), Chen, L. Z. (author), Uijttewaal, W.S.J. (author), Ferreira, Carlos (author)In order to assess the dynamic performance of a submerged floating tunnel (SFT) subject to flow-induced vibration (FIV) conditions in a practical engineering application, a one-way fluid–structure interaction (FSI) model consisting of multi-scale hydrodynamic solvers combined with the finite element method (FEM) is established. A typical long...journal article 2022
- document
-
Hu, Z. (author), Lian, S. (author), Zitman, T.J. (author), Wang, H. (author), He, Z. (author), Wei, H. (author), Ren, L. (author), Uijttewaal, W.S.J. (author), Suzuki, T. (author)Wave height attenuation in vegetation canopies is often all attributed to the drag force exerted by vegetation, whereas other potential dissipation process is often neglected. Previous studies without vegetation have found that opposing currents can induce wave breaking and greatly increase dissipation. It is not clear if similar process may...journal article 2022
- document
-
Alhaddad, S.M.S. (author), Labeur, R.J. (author), Uijttewaal, W.S.J. (author)The ability to estimate the erosion rate along an underwater breach face is crucial to understand the evolution of breaching failure. To this end, breaching erosion models were developed and applied in numerical models. However, these erosion models have never been validated, owing to the scarcity of direct measurements of turbidity currents...conference paper 2021
- document
- Pasman, R. (author), Schielen, R.M.J. (author), Bricker, J.D. (author), van der Hout, A.J. (author), Mosselman, E. (author), Uijttewaal, W.S.J. (author), Collas, Frank (author), Huthoff, Freek (author) abstract 2021
- document
- Buffon, P. (author), Valero, Daniel (author), Uijttewaal, W.S.J. (author), Franca, M.J. (author) abstract 2021
- document
- Harms, J.M. (author), Chavarrías, Víctor (author), Yossef, Mohamed (author), Bricker, J.D. (author), Uijttewaal, W.S.J. (author), Yildiz, B. (author) poster 2021
- document
-
Yildiz, B. (author), Uijttewaal, W.S.J. (author), Bricker, J.D. (author), Mosselman, E. (author)Weirs are flow control structures that can be used for flow diversion purposes. They are classified according to section geometry or their length in the flow direction. For sharp-crested rectangular weirs, Rehbock [1] derived stage-discharge equations. In contracted geometries, streamlines curve at the approach flow leading to variations in flow...conference paper 2021
- document
-
Verbeek, Merel C. (author), Labeur, R.J. (author), Uijttewaal, W.S.J. (author)The tidal flow between bridge pillars and through open barriers is a promising source of ocean energy which can be exploited using tidal stream turbines, as proven recently by operational demonstration plants. The aim of this study is to clarify the consequences for the power output of tidal turbines when placing them in a hydraulic structure...journal article 2021
- document
-
Gijón Mancheño, A. (author), Jansen, Wiljan (author), Winterwerp, J.C. (author), Uijttewaal, W.S.J. (author)Mangrove vegetation provides natural protection against coastal hazards like flooding and erosion. In spite of their economic and societal value, mangrove forests have experienced a worldwide decline due to human activities. Bamboo structures, formed by poles driven into the soil, are being used to create a sheltered environment for mangrove...journal article 2021
- document
-
Wei, P. (author), Uijttewaal, W.S.J. (author), van Lier, J.B. (author), de Kreuk, M.K. (author)Accurate rheological characterisation of sewage waste activated sludge (WAS) is of high importance for downstream processing related to optimised sludge pumping and mixing, assessment of energy demands and overall process design. However, to elaborate rheological behaviour is often challenging under dynamic operational conditions in practice....journal article 2021